diff --git a/indra/llcommon/llerror.cpp b/indra/llcommon/llerror.cpp
index 5a3f2cbc5c..a06e28524c 100644
--- a/indra/llcommon/llerror.cpp
+++ b/indra/llcommon/llerror.cpp
@@ -1622,11 +1622,11 @@ namespace LLError
     std::string LLUserWarningMsg::sLocalizedOutOfMemoryWarning;
     LLUserWarningMsg::Handler LLUserWarningMsg::sHandler;
 
-    void LLUserWarningMsg::show(const std::string& message)
+    void LLUserWarningMsg::show(const std::string& message, S32 error_code)
     {
         if (sHandler)
         {
-            sHandler(std::string(), message);
+            sHandler(std::string(), message, error_code);
         }
     }
 
@@ -1634,7 +1634,7 @@ namespace LLError
     {
         if (sHandler && !sLocalizedOutOfMemoryTitle.empty())
         {
-            sHandler(sLocalizedOutOfMemoryTitle, sLocalizedOutOfMemoryWarning);
+            sHandler(sLocalizedOutOfMemoryTitle, sLocalizedOutOfMemoryWarning, ERROR_BAD_ALLOC);
         }
     }
 
@@ -1645,7 +1645,7 @@ namespace LLError
             "Firestorm couldn't access some of the files it needs and will be closed."
             "\n\nPlease reinstall viewer from https://www.firestormviewer.org/download and "
             "contact https://www.firestormviewer.org/support if issue persists after reinstall.";
-        sHandler("Missing Files", error_string);
+        sHandler("Missing Files", error_string, ERROR_MISSING_FILES);
     }
 
     void LLUserWarningMsg::setHandler(const LLUserWarningMsg::Handler &handler)
diff --git a/indra/llcommon/llerror.h b/indra/llcommon/llerror.h
index db0d0f2f4c..b4bc3d1db6 100644
--- a/indra/llcommon/llerror.h
+++ b/indra/llcommon/llerror.h
@@ -320,7 +320,15 @@ namespace LLError
     class LLUserWarningMsg
     {
     public:
-        typedef std::function<void(const std::string&, const std::string&)> Handler;
+        typedef enum
+        {
+            ERROR_OTHER = 0,
+            ERROR_BAD_ALLOC = 1,
+            ERROR_MISSING_FILES = 2,
+        } eLastExecEvent;
+
+        // tittle, message and error code to include in error marker file
+        typedef std::function<void(const std::string&, const std::string&, S32 error_code)> Handler;
         static void setHandler(const Handler&);
         static void setOutOfMemoryStrings(const std::string& title, const std::string& message);
 
@@ -328,7 +336,7 @@ namespace LLError
         static void showOutOfMemory();
         static void showMissingFiles();
         // Genering error
-        static void show(const std::string&);
+        static void show(const std::string&, S32 error_code = -1);
 
     private:
         // needs to be preallocated before viewer runs out of memory
diff --git a/indra/llinventory/llinventory.cpp b/indra/llinventory/llinventory.cpp
index 0b2d3bbd9d..8098ff19c2 100644
--- a/indra/llinventory/llinventory.cpp
+++ b/indra/llinventory/llinventory.cpp
@@ -996,7 +996,7 @@ void LLInventoryItem::asLLSD( LLSD& sd ) const
     }
     //sd[INV_FLAGS_LABEL] = (S32)mFlags;
     sd[INV_FLAGS_LABEL] = ll_sd_from_U32(mFlags);
-    sd[INV_SALE_INFO_LABEL] = mSaleInfo;
+    sd[INV_SALE_INFO_LABEL] = mSaleInfo.asLLSD();
     sd[INV_NAME_LABEL] = mName;
     sd[INV_DESC_LABEL] = mDescription;
     sd[INV_CREATION_DATE_LABEL] = (S32) mCreationDate;
diff --git a/indra/llinventory/llsaleinfo.cpp b/indra/llinventory/llsaleinfo.cpp
index 98836b178e..35bbc1dbb1 100644
--- a/indra/llinventory/llsaleinfo.cpp
+++ b/indra/llinventory/llsaleinfo.cpp
@@ -89,8 +89,14 @@ bool LLSaleInfo::exportLegacyStream(std::ostream& output_stream) const
 
 LLSD LLSaleInfo::asLLSD() const
 {
-    LLSD sd = LLSD();
-    sd["sale_type"] = lookup(mSaleType);
+    LLSD sd;
+    const char* type = lookup(mSaleType);
+    if (!type)
+    {
+        LL_WARNS_ONCE() << "Unknown sale type: " << mSaleType << LL_ENDL;
+        type = lookup(LLSaleInfo::FS_NOT);
+    }
+    sd["sale_type"] = type;
     sd["sale_price"] = mSalePrice;
     return sd;
 }
diff --git a/indra/llmath/llvector4a.h b/indra/llmath/llvector4a.h
index 8ef560dadf..4004852e06 100644
--- a/indra/llmath/llvector4a.h
+++ b/indra/llmath/llvector4a.h
@@ -33,6 +33,9 @@ class LLRotation;
 #include <assert.h>
 #include "llpreprocessor.h"
 #include "llmemory.h"
+#include "glm/vec3.hpp"
+#include "glm/vec4.hpp"
+#include "glm/gtc/type_ptr.hpp"
 
 ///////////////////////////////////
 // FIRST TIME USERS PLEASE READ
@@ -364,6 +367,16 @@ public:
 
     inline operator LLQuad() const;
 
+    explicit inline operator glm::vec3() const
+    {
+        return glm::make_vec3(getF32ptr());
+    };
+
+    explicit inline operator glm::vec4() const
+    {
+        return glm::make_vec4(getF32ptr());
+    };
+
 private:
     LLQuad mQ{};
 };
diff --git a/indra/llmath/v3math.h b/indra/llmath/v3math.h
index d063b15c74..a3bfa68060 100644
--- a/indra/llmath/v3math.h
+++ b/indra/llmath/v3math.h
@@ -31,6 +31,11 @@
 #include "llmath.h"
 
 #include "llsd.h"
+
+#include "glm/vec3.hpp"
+#include "glm/vec4.hpp"
+#include "glm/gtc/type_ptr.hpp"
+
 class LLVector2;
 class LLVector4;
 class LLVector4a;
@@ -66,6 +71,11 @@ class LLVector3
         explicit LLVector3(const LLVector4a& vec);              // Initializes LLVector4 to (vec[0]. vec[1], vec[2])
         explicit LLVector3(const LLSD& sd);
 
+        // GLM interop
+        explicit LLVector3(const glm::vec3& vec);   // Initializes LLVector3 to (vec[0]. vec[1], vec[2])
+        explicit LLVector3(const glm::vec4& vec);   // Initializes LLVector3 to (vec[0]. vec[1], vec[2])
+        explicit inline operator glm::vec3() const; // Initializes glm::vec3 to (vec[0]. vec[1], vec[2])
+        explicit inline operator glm::vec4() const; // Initializes glm::vec4 to (vec[0]. vec[1], vec[2], 1)
 
         LLSD getValue() const;
 
@@ -92,6 +102,8 @@ class LLVector3
         inline void set(const F32 *vec);            // Sets LLVector3 to vec
         const LLVector3& set(const LLVector4 &vec);
         const LLVector3& set(const LLVector3d &vec);// Sets LLVector3 to vec
+        inline void set(const glm::vec4& vec); // Sets LLVector3 to vec
+        inline void set(const glm::vec3& vec); // Sets LLVector3 to vec
 
         inline void setVec(F32 x, F32 y, F32 z);    // deprecated
         inline void setVec(const LLVector3 &vec);   // deprecated
@@ -190,6 +202,20 @@ inline LLVector3::LLVector3(const F32 *vec)
     mV[VZ] = vec[VZ];
 }
 
+inline LLVector3::LLVector3(const glm::vec3& vec)
+{
+    mV[VX] = vec.x;
+    mV[VY] = vec.y;
+    mV[VZ] = vec.z;
+}
+
+inline LLVector3::LLVector3(const glm::vec4& vec)
+{
+    mV[VX] = vec.x;
+    mV[VY] = vec.y;
+    mV[VZ] = vec.z;
+}
+
 /*
 inline LLVector3::LLVector3(const LLVector3 &copy)
 {
@@ -259,6 +285,20 @@ inline void LLVector3::set(const F32 *vec)
     mV[2] = vec[2];
 }
 
+inline void LLVector3::set(const glm::vec4& vec)
+{
+    mV[VX] = vec.x;
+    mV[VY] = vec.y;
+    mV[VZ] = vec.z;
+}
+
+inline void LLVector3::set(const glm::vec3& vec)
+{
+    mV[VX] = vec.x;
+    mV[VY] = vec.y;
+    mV[VZ] = vec.z;
+}
+
 // deprecated
 inline void LLVector3::setVec(F32 x, F32 y, F32 z)
 {
@@ -471,6 +511,17 @@ inline LLVector3 operator-(const LLVector3 &a)
     return LLVector3( -a.mV[0], -a.mV[1], -a.mV[2] );
 }
 
+inline LLVector3::operator glm::vec3() const
+{
+    // Do not use glm::make_vec3 it can result in a buffer overrun on some platforms due to glm::vec3 being a simd vector internally
+    return glm::vec3(mV[VX], mV[VY], mV[VZ]);
+}
+
+inline LLVector3::operator glm::vec4() const
+{
+    return glm::vec4(mV[VX], mV[VY], mV[VZ], 1.f);
+}
+
 inline F32  dist_vec(const LLVector3 &a, const LLVector3 &b)
 {
     F32 x = a.mV[0] - b.mV[0];
diff --git a/indra/llmath/v4math.h b/indra/llmath/v4math.h
index 4a1a337ad2..285a647205 100644
--- a/indra/llmath/v4math.h
+++ b/indra/llmath/v4math.h
@@ -32,6 +32,10 @@
 #include "v3math.h"
 #include "v2math.h"
 
+#include "glm/vec3.hpp"
+#include "glm/vec4.hpp"
+#include "glm/gtc/type_ptr.hpp"
+
 class LLMatrix3;
 class LLMatrix4;
 class LLQuaternion;
@@ -73,6 +77,11 @@ class LLVector4
             mV[3] = (F32)sd[3].asReal();
         }
 
+        // GLM interop
+        explicit LLVector4(const glm::vec3& vec); // Initializes LLVector4 to (vec, 1)
+        explicit LLVector4(const glm::vec4& vec); // Initializes LLVector4 to vec
+        explicit operator glm::vec3() const;      // Initializes glm::vec3 to (vec[0]. vec[1], vec[2])
+        explicit operator glm::vec4() const;      // Initializes glm::vec4 to (vec[0]. vec[1], vec[2], vec[3])
 
         inline bool isFinite() const;                                   // checks to see if all values of LLVector3 are finite
 
@@ -85,6 +94,8 @@ class LLVector4
         inline void set(const LLVector4 &vec);          // Sets LLVector4 to vec
         inline void set(const LLVector3 &vec, F32 w = 1.f); // Sets LLVector4 to LLVector3 vec
         inline void set(const F32 *vec);                // Sets LLVector4 to vec
+        inline void set(const glm::vec4& vec); // Sets LLVector4 to vec
+        inline void set(const glm::vec3& vec, F32 w = 1.f); // Sets LLVector4 to LLVector3 vec with w defaulted to 1
 
         inline void setVec(F32 x, F32 y, F32 z);        // deprecated
         inline void setVec(F32 x, F32 y, F32 z, F32 w); // deprecated
@@ -223,6 +234,21 @@ inline LLVector4::LLVector4(const LLSD &sd)
     setValue(sd);
 }
 
+inline LLVector4::LLVector4(const glm::vec3& vec)
+{
+    mV[VX] = vec.x;
+    mV[VY] = vec.y;
+    mV[VZ] = vec.z;
+    mV[VW] = 1.f;
+}
+
+inline LLVector4::LLVector4(const glm::vec4& vec)
+{
+    mV[VX] = vec.x;
+    mV[VY] = vec.y;
+    mV[VZ] = vec.z;
+    mV[VW] = vec.w;
+}
 
 inline bool LLVector4::isFinite() const
 {
@@ -297,6 +323,21 @@ inline void LLVector4::set(const F32 *vec)
     mV[VW] = vec[VW];
 }
 
+inline void LLVector4::set(const glm::vec4& vec)
+{
+    mV[VX] = vec.x;
+    mV[VY] = vec.y;
+    mV[VZ] = vec.z;
+    mV[VW] = vec.w;
+}
+
+inline void LLVector4::set(const glm::vec3& vec, F32 w)
+{
+    mV[VX] = vec.x;
+    mV[VY] = vec.y;
+    mV[VZ] = vec.z;
+    mV[VW] = w;
+}
 
 // deprecated
 inline void LLVector4::setVec(F32 x, F32 y, F32 z)
@@ -473,6 +514,16 @@ inline bool operator<(const LLVector4& lhs, const LLVector4& rhs)
 }
 // [/RLVa:KB]
 
+inline LLVector4::operator glm::vec3() const
+{
+    return glm::vec3(mV[VX], mV[VY], mV[VZ]);
+}
+
+inline LLVector4::operator glm::vec4() const
+{
+    return glm::make_vec4(mV);
+}
+
 inline F32  dist_vec(const LLVector4 &a, const LLVector4 &b)
 {
     LLVector4 vec = a - b;
diff --git a/indra/llrender/llrender.cpp b/indra/llrender/llrender.cpp
index 984c3315fa..76158b5f4f 100644
--- a/indra/llrender/llrender.cpp
+++ b/indra/llrender/llrender.cpp
@@ -737,9 +737,8 @@ void LLLightState::setPosition(const LLVector4& position)
     ++gGL.mLightHash;
     mPosition = position;
     //transform position by current modelview matrix
-    glm::vec4 pos(glm::make_vec4(position.mV));
-    const glm::mat4& mat = gGL.getModelviewMatrix();
-    pos = mat * pos;
+    glm::vec4 pos(position);
+    pos = gGL.getModelviewMatrix() * pos;
     mPosition.set(glm::value_ptr(pos));
 }
 
@@ -794,7 +793,7 @@ void LLLightState::setSpotDirection(const LLVector3& direction)
     ++gGL.mLightHash;
 
     //transform direction by current modelview matrix
-    glm::vec3 dir(glm::make_vec3(direction.mV));
+    glm::vec3 dir(direction);
     const glm::mat3 mat(gGL.getModelviewMatrix());
     dir = mat * dir;
 
@@ -2129,12 +2128,14 @@ void set_last_projection(const glm::mat4& mat)
 
 glm::vec3 mul_mat4_vec3(const glm::mat4& mat, const glm::vec3& vec)
 {
-    //const float w = vec[0] * mat[0][3] + vec[1] * mat[1][3] + vec[2] * mat[2][3] + mat[3][3];
-    //return glm::vec3(
-    //    (vec[0] * mat[0][0] + vec[1] * mat[1][0] + vec[2] * mat[2][0] + mat[3][0]) / w,
-    //    (vec[0] * mat[0][1] + vec[1] * mat[1][1] + vec[2] * mat[2][1] + mat[3][1]) / w,
-    //    (vec[0] * mat[0][2] + vec[1] * mat[1][2] + vec[2] * mat[2][2] + mat[3][2]) / w
-    //);
+#if 1 // SIMD path results in strange crashes. Fall back to scalar for now.
+    const float w = vec[0] * mat[0][3] + vec[1] * mat[1][3] + vec[2] * mat[2][3] + mat[3][3];
+    return glm::vec3(
+       (vec[0] * mat[0][0] + vec[1] * mat[1][0] + vec[2] * mat[2][0] + mat[3][0]) / w,
+       (vec[0] * mat[0][1] + vec[1] * mat[1][1] + vec[2] * mat[2][1] + mat[3][1]) / w,
+       (vec[0] * mat[0][2] + vec[1] * mat[1][2] + vec[2] * mat[2][2] + mat[3][2]) / w
+    );
+#else
     LLVector4a x, y, z, s, t, p, q;
 
     x.splat(vec.x);
@@ -2164,4 +2165,5 @@ glm::vec3 mul_mat4_vec3(const glm::mat4& mat, const glm::vec3& vec)
     res.setAdd(x, z);
     res.div(q);
     return glm::make_vec3(res.getF32ptr());
+#endif
 }
diff --git a/indra/llrender/llshadermgr.cpp b/indra/llrender/llshadermgr.cpp
index d8261f3a16..9ae5dd1ceb 100644
--- a/indra/llrender/llshadermgr.cpp
+++ b/indra/llrender/llshadermgr.cpp
@@ -472,6 +472,7 @@ GLuint LLShaderMgr::loadShaderFile(const std::string& filename, S32 & shader_lev
 
     if (filename.empty())
     {
+        LL_WARNS("ShaderLoading") << "tried loading empty filename" << LL_ENDL;
         return 0;
     }
 
@@ -929,6 +930,8 @@ GLuint LLShaderMgr::loadShaderFile(const std::string& filename, S32 & shader_lev
         }
         LL_WARNS("ShaderLoading") << "Failed to load " << filename << LL_ENDL;
     }
+
+    LL_DEBUGS("ShaderLoading") << "loadShaderFile() completed, ret: " << U32(ret) << LL_ENDL;
     return ret;
 }
 
diff --git a/indra/llui/llnotifications.cpp b/indra/llui/llnotifications.cpp
index c1a8e94096..6e1e7c8631 100644
--- a/indra/llui/llnotifications.cpp
+++ b/indra/llui/llnotifications.cpp
@@ -1563,7 +1563,7 @@ bool LLNotifications::loadTemplates()
         gDirUtilp->findSkinnedFilenames(LLDir::XUI, "notifications.xml", LLDir::ALL_SKINS);
     if (search_paths.empty())
     {
-        LLError::LLUserWarningMsg::show(LLTrans::getString("MBMissingFile"));
+        LLError::LLUserWarningMsg::show(LLTrans::getString("MBMissingFile"), LLError::LLUserWarningMsg::ERROR_MISSING_FILES);
         LL_ERRS() << "Problem finding notifications.xml" << LL_ENDL;
     }
 
@@ -1573,7 +1573,7 @@ bool LLNotifications::loadTemplates()
 
     if (!success || root.isNull() || !root->hasName( "notifications" ))
     {
-        LLError::LLUserWarningMsg::show(LLTrans::getString("MBMissingFile"));
+        LLError::LLUserWarningMsg::show(LLTrans::getString("MBMissingFile"), LLError::LLUserWarningMsg::ERROR_MISSING_FILES);
         LL_ERRS() << "Problem reading XML from UI Notifications file: " << base_filename << LL_ENDL;
         return false;
     }
@@ -1584,7 +1584,7 @@ bool LLNotifications::loadTemplates()
 
     if(!params.validateBlock())
     {
-        LLError::LLUserWarningMsg::show(LLTrans::getString("MBMissingFile"));
+        LLError::LLUserWarningMsg::show(LLTrans::getString("MBMissingFile"), LLError::LLUserWarningMsg::ERROR_MISSING_FILES);
         LL_ERRS() << "Problem reading XUI from UI Notifications file: " << base_filename << LL_ENDL;
         return false;
     }
@@ -1651,7 +1651,7 @@ bool LLNotifications::loadVisibilityRules()
 
     if(!params.validateBlock())
     {
-        LLError::LLUserWarningMsg::show(LLTrans::getString("MBMissingFile"));
+        LLError::LLUserWarningMsg::show(LLTrans::getString("MBMissingFile"), LLError::LLUserWarningMsg::ERROR_MISSING_FILES);
         LL_ERRS() << "Problem reading UI Notification Visibility Rules file: " << full_filename << LL_ENDL;
         return false;
     }
diff --git a/indra/llui/lltransutil.cpp b/indra/llui/lltransutil.cpp
index 09d5e888e7..6f20f85813 100644
--- a/indra/llui/lltransutil.cpp
+++ b/indra/llui/lltransutil.cpp
@@ -48,7 +48,7 @@ bool LLTransUtil::parseStrings(const std::string& xml_filename, const std::set<s
             "Firestorm couldn't access some of the files it needs and will be closed."
             "\n\nPlease reinstall viewer from https://www.firestormviewer.org/download and "
             "contact https://www.firestormviewer.org/support if issue persists after reinstall.";
-        LLError::LLUserWarningMsg::show(error_string);
+        LLError::LLUserWarningMsg::show(error_string, LLError::LLUserWarningMsg::ERROR_MISSING_FILES);
         gDirUtilp->dumpCurrentDirectories(LLError::LEVEL_WARN);
         LL_ERRS() << "Couldn't load string table " << xml_filename << ". Please reinstall viewer from https://www.firestormviewer.org/download and contact https://www.firestormviewer.org/support if issue persists after reinstall." << LL_ENDL;
         return false;
diff --git a/indra/llwindow/llwindowwin32.cpp b/indra/llwindow/llwindowwin32.cpp
index fafb77d354..3dc44f7f74 100644
--- a/indra/llwindow/llwindowwin32.cpp
+++ b/indra/llwindow/llwindowwin32.cpp
@@ -1320,8 +1320,7 @@ bool LLWindowWin32::switchContext(bool fullscreen, const LLCoordScreen& size, bo
     catch (...)
     {
         LOG_UNHANDLED_EXCEPTION("ChoosePixelFormat");
-        OSMessageBox(mCallbacks->translateString("MBPixelFmtErr"),
-            mCallbacks->translateString("MBError"), OSMB_OK);
+        LLError::LLUserWarningMsg::show(mCallbacks->translateString("MBPixelFmtErr"), 8/*LAST_EXEC_GRAPHICS_INIT*/);
         close();
         return false;
     }
@@ -1332,8 +1331,7 @@ bool LLWindowWin32::switchContext(bool fullscreen, const LLCoordScreen& size, bo
     if (!DescribePixelFormat(mhDC, pixel_format, sizeof(PIXELFORMATDESCRIPTOR),
         &pfd))
     {
-        OSMessageBox(mCallbacks->translateString("MBPixelFmtDescErr"),
-            mCallbacks->translateString("MBError"), OSMB_OK);
+        LLError::LLUserWarningMsg::show(mCallbacks->translateString("MBPixelFmtDescErr"), 8/*LAST_EXEC_GRAPHICS_INIT*/);
         close();
         return false;
     }
@@ -1371,8 +1369,7 @@ bool LLWindowWin32::switchContext(bool fullscreen, const LLCoordScreen& size, bo
 
     if (!SetPixelFormat(mhDC, pixel_format, &pfd))
     {
-        OSMessageBox(mCallbacks->translateString("MBPixelFmtSetErr"),
-            mCallbacks->translateString("MBError"), OSMB_OK);
+        LLError::LLUserWarningMsg::show(mCallbacks->translateString("MBPixelFmtSetErr"), 8/*LAST_EXEC_GRAPHICS_INIT*/);
         close();
         return false;
     }
@@ -1380,16 +1377,14 @@ bool LLWindowWin32::switchContext(bool fullscreen, const LLCoordScreen& size, bo
 
     if (!(mhRC = SafeCreateContext(mhDC)))
     {
-        OSMessageBox(mCallbacks->translateString("MBGLContextErr"),
-            mCallbacks->translateString("MBError"), OSMB_OK);
+        LLError::LLUserWarningMsg::show(mCallbacks->translateString("MBGLContextErr"), 8/*LAST_EXEC_GRAPHICS_INIT*/);
         close();
         return false;
     }
 
     if (!wglMakeCurrent(mhDC, mhRC))
     {
-        OSMessageBox(mCallbacks->translateString("MBGLContextActErr"),
-            mCallbacks->translateString("MBError"), OSMB_OK);
+        LLError::LLUserWarningMsg::show(mCallbacks->translateString("MBGLContextActErr"), 8/*LAST_EXEC_GRAPHICS_INIT*/);
         close();
         return false;
     }
@@ -1595,15 +1590,14 @@ const   S32   max_format  = (S32)num_formats - 1;
 
         if (!mhDC)
         {
-            OSMessageBox(mCallbacks->translateString("MBDevContextErr"), mCallbacks->translateString("MBError"), OSMB_OK);
+            LLError::LLUserWarningMsg::show(mCallbacks->translateString("MBDevContextErr"), 8/*LAST_EXEC_GRAPHICS_INIT*/);
             close();
             return false;
         }
 
         if (!SetPixelFormat(mhDC, pixel_format, &pfd))
         {
-            OSMessageBox(mCallbacks->translateString("MBPixelFmtSetErr"),
-                mCallbacks->translateString("MBError"), OSMB_OK);
+            LLError::LLUserWarningMsg::show(mCallbacks->translateString("MBPixelFmtSetErr"), 8/*LAST_EXEC_GRAPHICS_INIT*/);
             close();
             return false;
         }
@@ -1635,7 +1629,7 @@ const   S32   max_format  = (S32)num_formats - 1;
     {
         LL_WARNS("Window") << "No wgl_ARB_pixel_format extension!" << LL_ENDL;
         // cannot proceed without wgl_ARB_pixel_format extension, shutdown same as any other gGLManager.initGL() failure
-        OSMessageBox(mCallbacks->translateString("MBVideoDrvErr"), mCallbacks->translateString("MBError"), OSMB_OK);
+        LLError::LLUserWarningMsg::show(mCallbacks->translateString("MBVideoDrvErr"), 8/*LAST_EXEC_GRAPHICS_INIT*/);
         close();
         return false;
     }
@@ -1644,7 +1638,7 @@ const   S32   max_format  = (S32)num_formats - 1;
     if (!DescribePixelFormat(mhDC, pixel_format, sizeof(PIXELFORMATDESCRIPTOR),
         &pfd))
     {
-        OSMessageBox(mCallbacks->translateString("MBPixelFmtDescErr"), mCallbacks->translateString("MBError"), OSMB_OK);
+        LLError::LLUserWarningMsg::show(mCallbacks->translateString("MBPixelFmtDescErr"), 8/*LAST_EXEC_GRAPHICS_INIT*/);
         close();
         return false;
     }
@@ -1666,14 +1660,14 @@ const   S32   max_format  = (S32)num_formats - 1;
 
     if (!wglMakeCurrent(mhDC, mhRC))
     {
-        OSMessageBox(mCallbacks->translateString("MBGLContextActErr"), mCallbacks->translateString("MBError"), OSMB_OK);
+        LLError::LLUserWarningMsg::show(mCallbacks->translateString("MBGLContextActErr"), 8/*LAST_EXEC_GRAPHICS_INIT*/);
         close();
         return false;
     }
 
     if (!gGLManager.initGL())
     {
-        OSMessageBox(mCallbacks->translateString("MBVideoDrvErr"), mCallbacks->translateString("MBError"), OSMB_OK);
+        LLError::LLUserWarningMsg::show(mCallbacks->translateString("MBVideoDrvErr"), 8/*LAST_EXEC_GRAPHICS_INIT*/);
         close();
         return false;
     }
@@ -1877,7 +1871,7 @@ void* LLWindowWin32::createSharedContext()
     if (!rc && !(rc = wglCreateContext(mhDC)))
     {
         close();
-        OSMessageBox(mCallbacks->translateString("MBGLContextErr"), mCallbacks->translateString("MBError"), OSMB_OK);
+        LLError::LLUserWarningMsg::show(mCallbacks->translateString("MBGLContextErr"), 8/*LAST_EXEC_GRAPHICS_INIT*/);
     }
 
     return rc;
diff --git a/indra/newview/gltfscenemanager.cpp b/indra/newview/gltfscenemanager.cpp
index 09e9ed847f..57fa0556ab 100644
--- a/indra/newview/gltfscenemanager.cpp
+++ b/indra/newview/gltfscenemanager.cpp
@@ -974,9 +974,9 @@ void renderAssetDebug(LLViewerObject* obj, Asset* asset)
 
     LLVector4a t;
     agent_to_asset.affineTransform(gDebugRaycastStart, t);
-    start = glm::make_vec4(t.getF32ptr());
+    start = vec4(t);
     agent_to_asset.affineTransform(gDebugRaycastEnd, t);
-    end = glm::make_vec4(t.getF32ptr());
+    end = vec4(t);
 
     start.w = end.w = 1.0;
 
diff --git a/indra/newview/llappviewer.cpp b/indra/newview/llappviewer.cpp
index 8db746da1f..035b3ccfd2 100644
--- a/indra/newview/llappviewer.cpp
+++ b/indra/newview/llappviewer.cpp
@@ -328,6 +328,7 @@ bool gUseQuickTime = true;
 
 eLastExecEvent gLastExecEvent = LAST_EXEC_NORMAL;
 S32 gLastExecDuration = -1; // (<0 indicates unknown)
+LLUUID gLastAgentSessionId;
 
 #if LL_WINDOWS
 #   define LL_PLATFORM_KEY "win"
@@ -2655,12 +2656,26 @@ void errorCallback(LLError::ELevel level, const std::string &error_string)
     }
 }
 
-void errorMSG(const std::string& title_string, const std::string& message_string)
+void errorHandler(const std::string& title_string, const std::string& message_string, S32 code)
 {
     if (!message_string.empty())
     {
         OSMessageBox(message_string, title_string.empty() ? LLTrans::getString("MBFatalError") : title_string, OSMB_OK);
     }
+    switch (code)
+    {
+    case LLError::LLUserWarningMsg::ERROR_OTHER:
+        LLAppViewer::instance()->createErrorMarker(LAST_EXEC_OTHER_CRASH);
+        break;
+    case LLError::LLUserWarningMsg::ERROR_BAD_ALLOC:
+        LLAppViewer::instance()->createErrorMarker(LAST_EXEC_BAD_ALLOC);
+        break;
+    case LLError::LLUserWarningMsg::ERROR_MISSING_FILES:
+        LLAppViewer::instance()->createErrorMarker(LAST_EXEC_MISSING_FILES);
+        break;
+    default:
+        break;
+    }
 }
 
 void LLAppViewer::initLoggingAndGetLastDuration()
@@ -2674,7 +2689,7 @@ void LLAppViewer::initLoggingAndGetLastDuration()
     LLError::addGenericRecorder(&errorCallback);
     //LLError::setTimeFunction(getRuntime);
 
-    LLError::LLUserWarningMsg::setHandler(errorMSG);
+    LLError::LLUserWarningMsg::setHandler(errorHandler);
 
 
     if (mSecondInstance)
@@ -2969,6 +2984,7 @@ bool LLAppViewer::initConfiguration()
         OSMessageBox(
             "Unable to load default settings file. The installation may be corrupted.",
             LLStringUtil::null,OSMB_OK);
+        LLAppViewer::instance()->createErrorMarker(LAST_EXEC_MISSING_FILES);
         return false;
     }
 
@@ -4484,16 +4500,21 @@ bool LLAppViewer::markerIsSameVersion(const std::string& marker_name) const
     bool sameVersion = false;
 
     std::string my_version(LLVersionInfo::instance().getChannelAndVersion());
-    char marker_version[MAX_MARKER_LENGTH];
+    char marker_data[MAX_MARKER_LENGTH];
     S32  marker_version_length;
 
     LLAPRFile marker_file;
     marker_file.open(marker_name, LL_APR_RB);
     if (marker_file.getFileHandle())
     {
-        marker_version_length = marker_file.read(marker_version, sizeof(marker_version));
-        std::string marker_string(marker_version, marker_version_length);
-        if ( 0 == my_version.compare( 0, my_version.length(), marker_version, 0, marker_version_length ) )
+        marker_version_length = marker_file.read(marker_data, sizeof(marker_data));
+        std::string marker_string(marker_data, marker_version_length);
+        size_t pos = marker_string.find('\n');
+        if (pos != std::string::npos)
+        {
+            marker_string = marker_string.substr(0, pos);
+        }
+        if ( 0 == my_version.compare( 0, my_version.length(), marker_string, 0, marker_string.length()) )
         {
             sameVersion = true;
         }
@@ -4507,6 +4528,88 @@ bool LLAppViewer::markerIsSameVersion(const std::string& marker_name) const
     return sameVersion;
 }
 
+void LLAppViewer::recordSessionToMarker()
+{
+    std::string marker_version(LLVersionInfo::instance().getChannelAndVersion());
+    std::string uuid_str = "\n" + gAgentSessionID.asString();
+    if (marker_version.length() + uuid_str.length() > MAX_MARKER_LENGTH)
+    {
+        LL_WARNS_ONCE("MarkerFile") << "Version length (" << marker_version.length() << ")"
+            << " greater than maximum (" << MAX_MARKER_LENGTH << ")"
+            << ": marker matching may be incorrect"
+            << LL_ENDL;
+    }
+
+    mMarkerFile.seek(APR_SET, (S32)marker_version.length());
+    mMarkerFile.write(uuid_str.data(), (S32)uuid_str.length());
+}
+
+LLUUID LLAppViewer::getMarkerSessionId(const std::string& marker_name) const
+{
+    std::string data;
+    if (getMarkerData(marker_name, data))
+    {
+        return LLUUID(data);
+    }
+    return LLUUID();
+}
+
+S32 LLAppViewer::getMarkerErrorCode(const std::string& marker_name) const
+{
+    std::string data;
+    if (getMarkerData(marker_name, data))
+    {
+        if (data.empty())
+        {
+            return 0;
+        }
+        else
+        {
+            return std::stoi(data);
+        }
+    }
+    return -1;
+}
+
+bool LLAppViewer::getMarkerData(const std::string& marker_name, std::string& data) const
+{
+    bool sameVersion = false;
+
+    std::string my_version(LLVersionInfo::instance().getChannelAndVersion());
+    char marker_data[MAX_MARKER_LENGTH];
+    S32  marker_version_length;
+
+    LLAPRFile marker_file;
+    marker_file.open(marker_name, LL_APR_RB);
+    if (marker_file.getFileHandle())
+    {
+        marker_version_length = marker_file.read(marker_data, sizeof(marker_data));
+        marker_file.close();
+        std::string marker_string(marker_data, marker_version_length);
+        size_t pos = marker_string.find('\n');
+        if (pos != std::string::npos)
+        {
+            data = marker_string.substr(pos + 1, marker_version_length - pos - 1);
+            marker_string = marker_string.substr(0, pos);
+        }
+        if (0 == my_version.compare(0, my_version.length(), marker_string, 0, marker_string.length()))
+        {
+            sameVersion = true;
+        }
+        else
+        {
+            return false;
+        }
+        LL_DEBUGS("MarkerFile") << "Compare markers for '" << marker_name << "': "
+            << "\n   mine '" << my_version << "'"
+            << "\n marker '" << marker_string << "'"
+            << "\n " << (sameVersion ? "same" : "different") << " version"
+            << LL_ENDL;
+        return true;
+    }
+    return false;
+}
+
 void LLAppViewer::processMarkerFiles()
 {
     //We've got 4 things to test for here
@@ -4525,6 +4628,10 @@ void LLAppViewer::processMarkerFiles()
         // File exists...
         // first, read it to see if it was created by the same version (we need this later)
         marker_is_same_version = markerIsSameVersion(mMarkerFileName);
+        if (marker_is_same_version)
+        {
+            gLastAgentSessionId = getMarkerSessionId(mMarkerFileName);
+        }
 
         // now test to see if this file is locked by a running process (try to open for write)
         marker_log_stream << "Checking exec marker file for lock...";
@@ -4645,17 +4752,23 @@ void LLAppViewer::processMarkerFiles()
     std::string error_marker_file = gDirUtilp->getExpandedFilename(LL_PATH_LOGS, ERROR_MARKER_FILE_NAME);
     if(LLAPRFile::isExist(error_marker_file, NULL, LL_APR_RB))
     {
-        if (markerIsSameVersion(error_marker_file))
+        S32 marker_code = getMarkerErrorCode(error_marker_file);
+        if (marker_code >= 0)
         {
             if (gLastExecEvent == LAST_EXEC_LOGOUT_FROZE)
             {
                 gLastExecEvent = LAST_EXEC_LOGOUT_CRASH;
                 LL_INFOS("MarkerFile") << "Error marker '"<< error_marker_file << "' crashed, setting LastExecEvent to LOGOUT_CRASH" << LL_ENDL;
             }
+            else if (marker_code > 0 && marker_code < (S32)LAST_EXEC_COUNT)
+            {
+                gLastExecEvent = (eLastExecEvent)marker_code;
+                LL_INFOS("MarkerFile") << "Error marker '"<< error_marker_file << "' crashed, setting LastExecEvent to " << gLastExecEvent << LL_ENDL;
+            }
             else
             {
                 gLastExecEvent = LAST_EXEC_OTHER_CRASH;
-                LL_INFOS("MarkerFile") << "Error marker '"<< error_marker_file << "' crashed, setting LastExecEvent to " << gLastExecEvent << LL_ENDL;
+                LL_INFOS("MarkerFile") << "Error marker '" << error_marker_file << "' crashed, setting LastExecEvent to " << gLastExecEvent << LL_ENDL;
             }
         }
         else
@@ -6059,6 +6172,24 @@ void LLAppViewer::postToMainCoro(const LL::WorkQueue::Work& work)
     gMainloopWork.post(work);
 }
 
+void LLAppViewer::createErrorMarker(eLastExecEvent error_code) const
+{
+    if (!mSecondInstance)
+    {
+        std::string error_marker = gDirUtilp->getExpandedFilename(LL_PATH_LOGS, ERROR_MARKER_FILE_NAME);
+
+        LLAPRFile file;
+        file.open(error_marker, LL_APR_WB);
+        if (file.getFileHandle())
+        {
+            recordMarkerVersion(file);
+            std::string data = "\n" + std::to_string((S32)error_code);
+            file.write(data.data(), static_cast<S32>(data.length()));
+            file.close();
+        }
+    }
+}
+
 void LLAppViewer::outOfMemorySoftQuit()
 {
     if (!mQuitRequested)
diff --git a/indra/newview/llappviewer.h b/indra/newview/llappviewer.h
index 40b686c094..f56d446fb0 100644
--- a/indra/newview/llappviewer.h
+++ b/indra/newview/llappviewer.h
@@ -66,6 +66,20 @@ class LLViewerRegion;
 
 extern LLTrace::BlockTimerStatHandle FTM_FRAME;
 
+typedef enum
+{
+    LAST_EXEC_NORMAL = 0,
+    LAST_EXEC_FROZE,
+    LAST_EXEC_LLERROR_CRASH,
+    LAST_EXEC_OTHER_CRASH,
+    LAST_EXEC_LOGOUT_FROZE,
+    LAST_EXEC_LOGOUT_CRASH,
+    LAST_EXEC_BAD_ALLOC,
+    LAST_EXEC_MISSING_FILES,
+    LAST_EXEC_GRAPHICS_INIT,
+    LAST_EXEC_COUNT
+} eLastExecEvent;
+
 class LLAppViewer : public LLApp
 {
 public:
@@ -144,6 +158,7 @@ public:
     void saveNameCache();
 
     void removeMarkerFiles();
+    void recordSessionToMarker();
 
     void removeDumpDir();
     // LLAppViewer testing helpers.
@@ -239,6 +254,9 @@ public:
     // post given work to the "mainloop" work queue for handling on the main thread
     void postToMainCoro(const LL::WorkQueue::Work& work);
 
+    // Writes an error code into the error_marker file for use on next startup.
+    void createErrorMarker(eLastExecEvent error_code) const;
+
     // Attempt a 'soft' quit with disconnect and saving of settings/cache.
     // Intended to be thread safe.
     // Good chance of viewer crashing either way, but better than alternatives.
@@ -286,6 +304,9 @@ private:
     void processMarkerFiles();
     static void recordMarkerVersion(LLAPRFile& marker_file);
     bool markerIsSameVersion(const std::string& marker_name) const;
+    LLUUID getMarkerSessionId(const std::string& marker_name) const;
+    S32 getMarkerErrorCode(const std::string& marker_name) const;
+    bool getMarkerData(const std::string& marker_name, std::string &data) const;
 
     void idle();
     void idleShutdown();
@@ -380,18 +401,9 @@ private:
 extern LLSD gDebugInfo;
 extern bool gShowObjectUpdates;
 
-typedef enum
-{
-    LAST_EXEC_NORMAL = 0,
-    LAST_EXEC_FROZE,
-    LAST_EXEC_LLERROR_CRASH,
-    LAST_EXEC_OTHER_CRASH,
-    LAST_EXEC_LOGOUT_FROZE,
-    LAST_EXEC_LOGOUT_CRASH
-} eLastExecEvent;
-
 extern eLastExecEvent gLastExecEvent; // llstartup
 extern S32 gLastExecDuration; ///< the duration of the previous run in seconds (<0 indicates unknown)
+extern LLUUID gLastAgentSessionId; // will be set if agent logged in
 
 extern const char* gPlatform;
 
diff --git a/indra/newview/llface.cpp b/indra/newview/llface.cpp
index ba2f70ef18..f346aa1f54 100644
--- a/indra/newview/llface.cpp
+++ b/indra/newview/llface.cpp
@@ -919,7 +919,7 @@ LLVector2 LLFace::surfaceToTexture(LLVector2 surface_coord, const LLVector4a& po
 
     //VECTORIZE THIS
     // see if we have a non-default mapping
-    U8 texgen = getTextureEntry()->getTexGen();
+    U8 texgen = tep->getTexGen();
     if (texgen != LLTextureEntry::TEX_GEN_DEFAULT)
     {
         LLVector4a& center = *(mDrawablep->getVOVolume()->getVolume()->getVolumeFace(mTEOffset).mCenter);
@@ -1026,8 +1026,17 @@ bool LLFace::calcAlignedPlanarTE(const LLFace* align_to,  LLVector2* res_st_offs
         return false;
     }
     const LLTextureEntry *orig_tep = align_to->getTextureEntry();
+    if (!orig_tep)
+    {
+        return false;
+    }
+    const LLTextureEntry* tep = getTextureEntry();
+    if (!tep)
+    {
+        return false;
+    }
     if ((orig_tep->getTexGen() != LLTextureEntry::TEX_GEN_PLANAR) ||
-        (getTextureEntry()->getTexGen() != LLTextureEntry::TEX_GEN_PLANAR))
+        (tep->getTexGen() != LLTextureEntry::TEX_GEN_PLANAR))
     {
         return false;
     }
@@ -1634,11 +1643,8 @@ bool LLFace::getGeometryVolume(const LLVolume& volume,
                 bump_t_primary_light_ray.load3((offset_multiple * t_scale * primary_light_ray).mV);
             }
 
-            // <FS:ND> FIRE-14261 Guard against null textures
-            // U8 texgen = getTextureEntry()->getTexGen();
-            U8 texgen = getTextureEntry() ? getTextureEntry()->getTexGen() : LLTextureEntry::TEX_GEN_DEFAULT;
-            // </FS:ND>
-
+            const LLTextureEntry* tep = getTextureEntry();
+            U8 texgen = tep ? tep->getTexGen() : LLTextureEntry::TEX_GEN_DEFAULT;
             if (rebuild_tcoord && texgen != LLTextureEntry::TEX_GEN_DEFAULT)
             { //planar texgen needs binormals
                 mVObjp->getVolume()->genTangents(face_index);
@@ -2182,7 +2188,12 @@ bool LLFace::getGeometryVolume(const LLVolume& volume,
             LLStrider<LLColor4U> emissive;
             mVertexBuffer->getEmissiveStrider(emissive, mGeomIndex, mGeomCount);
 
-            U8 glow = (U8) llclamp((S32) (getTextureEntry()->getGlow()*255), 0, 255);
+            const LLTextureEntry* tep = getTextureEntry();
+            U8 glow = 0;
+            if (tep)
+            {
+                glow = (U8)llclamp((S32)(tep->getGlow() * 255), 0, 255);
+            }
 
             LLVector4a src;
 
diff --git a/indra/newview/llfloatersnapshot.cpp b/indra/newview/llfloatersnapshot.cpp
index 5ab9092c0e..0354021776 100644
--- a/indra/newview/llfloatersnapshot.cpp
+++ b/indra/newview/llfloatersnapshot.cpp
@@ -67,6 +67,10 @@ LLPanelSnapshot* LLFloaterSnapshot::Impl::getActivePanel(LLFloaterSnapshotBase*
 {
     LLSideTrayPanelContainer* panel_container = floater->getChild<LLSideTrayPanelContainer>("panel_container");
     LLPanelSnapshot* active_panel = dynamic_cast<LLPanelSnapshot*>(panel_container->getCurrentPanel());
+    if (!active_panel)
+    {
+        LL_WARNS() << "No snapshot active panel, current panel index: " << panel_container->getCurrentPanelIndex() << LL_ENDL;
+    }
     if (!ok_if_not_found)
     {
         llassert_always(active_panel != NULL);
@@ -746,20 +750,18 @@ void LLFloaterSnapshotBase::ImplBase::setWorking(bool working)
     working_lbl->setVisible(working);
     mFloater->getChild<LLUICtrl>("working_indicator")->setVisible(working);
 
-    if (working)
-    {
-        const std::string panel_name = getActivePanel(mFloater, false)->getName();
-        const std::string prefix = panel_name.substr(getSnapshotPanelPrefix().size());
-        std::string progress_text = mFloater->getString(prefix + "_" + "progress_str");
-        working_lbl->setValue(progress_text);
-    }
-
     // All controls should be disabled while posting.
     mFloater->setCtrlsEnabled(!working);
-    LLPanelSnapshot* active_panel = getActivePanel(mFloater);
-    if (active_panel)
+    if (LLPanelSnapshot* active_panel = getActivePanel(mFloater))
     {
         active_panel->enableControls(!working);
+        if (working)
+        {
+            const std::string panel_name = active_panel->getName();
+            const std::string prefix = panel_name.substr(getSnapshotPanelPrefix().size());
+            std::string progress_text = mFloater->getString(prefix + "_" + "progress_str");
+            working_lbl->setValue(progress_text);
+        }
     }
 }
 
diff --git a/indra/newview/llgltfmaterialpreviewmgr.cpp b/indra/newview/llgltfmaterialpreviewmgr.cpp
index cf6b08797d..da1f1a466f 100644
--- a/indra/newview/llgltfmaterialpreviewmgr.cpp
+++ b/indra/newview/llgltfmaterialpreviewmgr.cpp
@@ -472,9 +472,9 @@ bool LLGLTFPreviewTexture::render()
 
     gPipeline.setupHWLights();
     glm::mat4 mat = get_current_modelview();
-    glm::vec4 transformed_light_dir = glm::make_vec4(light_dir.mV);
+    glm::vec4 transformed_light_dir(light_dir);
     transformed_light_dir = mat * transformed_light_dir;
-    SetTemporarily<LLVector4> force_sun_direction_high_graphics(&gPipeline.mTransformedSunDir, LLVector4(glm::value_ptr(transformed_light_dir)));
+    SetTemporarily<LLVector4> force_sun_direction_high_graphics(&gPipeline.mTransformedSunDir, LLVector4(transformed_light_dir));
     // Override lights to ensure the sun is always shining from a certain direction (low graphics)
     // See also force_sun_direction_high_graphics and fixup_shader_constants
     {
diff --git a/indra/newview/llhudrender.cpp b/indra/newview/llhudrender.cpp
index 135fba7897..6850e57b94 100644
--- a/indra/newview/llhudrender.cpp
+++ b/indra/newview/llhudrender.cpp
@@ -106,7 +106,7 @@ void hud_render_text(const LLWString &wstr, const LLVector3 &pos_agent,
     LLRect world_view_rect = gViewerWindow->getWorldViewRectRaw();
     glm::ivec4 viewport(world_view_rect.mLeft, world_view_rect.mBottom, world_view_rect.getWidth(), world_view_rect.getHeight());
 
-    glm::vec3 win_coord = glm::project(glm::make_vec3(render_pos.mV), get_current_modelview(), get_current_projection(), viewport);
+    glm::vec3 win_coord = glm::project(glm::vec3(render_pos), get_current_modelview(), get_current_projection(), viewport);
 
     //fonts all render orthographically, set up projection``
     gGL.matrixMode(LLRender::MM_PROJECTION);
diff --git a/indra/newview/lllogininstance.cpp b/indra/newview/lllogininstance.cpp
index 3af51d06af..228aa5bd1e 100644
--- a/indra/newview/lllogininstance.cpp
+++ b/indra/newview/lllogininstance.cpp
@@ -227,6 +227,7 @@ void LLLoginInstance::constructAuthParams(LLPointer<LLCredential> user_credentia
     request_params["read_critical"] = false; // handleTOSResponse
     request_params["last_exec_event"] = mLastExecEvent;
     request_params["last_exec_duration"] = mLastExecDuration;
+    request_params["last_exec_session_id"] = mLastAgentSessionId.asString();
     request_params["mac"] = (char*)hashed_unique_id_string;
     request_params["version"] = LLVersionInfo::instance().getVersion();
     request_params["channel"] = LLVersionInfo::instance().getChannel();
diff --git a/indra/newview/lllogininstance.h b/indra/newview/lllogininstance.h
index 444623d123..e5cb14b262 100644
--- a/indra/newview/lllogininstance.h
+++ b/indra/newview/lllogininstance.h
@@ -67,6 +67,7 @@ public:
     void setSerialNumber(const std::string& sn) { mSerialNumber = sn; }
     void setLastExecEvent(int lee) { mLastExecEvent = lee; }
     void setLastExecDuration(S32 duration) { mLastExecDuration = duration; }
+    void setLastAgentSessionId(const LLUUID& id) { mLastAgentSessionId = id; }
     void setPlatformInfo(const std::string platform, const std::string platform_version, const std::string platform_name);
 
     void setNotificationsInterface(LLNotificationsInterface* ni) { mNotifications = ni; }
@@ -104,6 +105,7 @@ private:
     std::string mSerialNumber;
     int mLastExecEvent;
     S32 mLastExecDuration;
+    LLUUID mLastAgentSessionId;
     std::string mPlatform;
     std::string mPlatformVersion;
     std::string mPlatformVersionName;
diff --git a/indra/newview/llpanelface.cpp b/indra/newview/llpanelface.cpp
index d50e365056..18d37e47e2 100644
--- a/indra/newview/llpanelface.cpp
+++ b/indra/newview/llpanelface.cpp
@@ -943,6 +943,10 @@ struct LLPanelFaceGetIsAlignedTEFunctor : public LLSelectedTEFunctor
         if (facep->calcAlignedPlanarTE(mCenterFace, &aligned_st_offset, &aligned_st_scale, &aligned_st_rot))
         {
             const LLTextureEntry* tep = facep->getTextureEntry();
+            if (!tep)
+            {
+                return false;
+            }
             LLVector2 st_offset, st_scale;
             tep->getOffset(&st_offset.mV[VX], &st_offset.mV[VY]);
             tep->getScale(&st_scale.mV[VX], &st_scale.mV[VY]);
diff --git a/indra/newview/llpanelprimmediacontrols.cpp b/indra/newview/llpanelprimmediacontrols.cpp
index dd7759a162..4de1b06cbd 100644
--- a/indra/newview/llpanelprimmediacontrols.cpp
+++ b/indra/newview/llpanelprimmediacontrols.cpp
@@ -662,11 +662,11 @@ void LLPanelPrimMediaControls::updateShape()
         for(; vert_it != vert_end; ++vert_it)
         {
             // project silhouette vertices into screen space
-            glm::vec3 screen_vert(glm::make_vec3(vert_it->mV));
+            glm::vec3 screen_vert(*vert_it);
             screen_vert = mul_mat4_vec3(mat, screen_vert);
 
             // add to screenspace bounding box
-            update_min_max(min, max, LLVector3(glm::value_ptr(screen_vert)));
+            update_min_max(min, max, LLVector3(screen_vert));
         }
 
         // convert screenspace bbox to pixels (in screen coords)
diff --git a/indra/newview/llreflectionmap.cpp b/indra/newview/llreflectionmap.cpp
index 1196d138e9..f3adb52d5e 100644
--- a/indra/newview/llreflectionmap.cpp
+++ b/indra/newview/llreflectionmap.cpp
@@ -259,7 +259,7 @@ bool LLReflectionMap::getBox(LLMatrix4& box)
             glm::mat4 mv(get_current_modelview());
             LLVector3 s = mViewerObject->getScale().scaledVec(LLVector3(0.5f, 0.5f, 0.5f));
             mRadius = s.magVec();
-            glm::mat4 scale = glm::scale(glm::make_vec3(s.mV));
+            glm::mat4 scale = glm::scale(glm::vec3(s));
             if (mViewerObject->mDrawable != nullptr)
             {
                 // object to agent space (no scale)
diff --git a/indra/newview/llsettingsvo.cpp b/indra/newview/llsettingsvo.cpp
index 6f9d4a24bc..62df6cd275 100644
--- a/indra/newview/llsettingsvo.cpp
+++ b/indra/newview/llsettingsvo.cpp
@@ -1093,8 +1093,8 @@ void LLSettingsVOWater::applySpecial(void *ptarget, bool force)
 
         LLVector4 waterPlane(enorm.x, enorm.y, enorm.z, -glm::dot(ep, enorm));
 
-        norm = glm::make_vec3(gPipeline.mHeroProbeManager.mMirrorNormal.mV);
-        p    = glm::make_vec3(gPipeline.mHeroProbeManager.mMirrorPosition.mV);
+        norm = glm::vec3(gPipeline.mHeroProbeManager.mMirrorNormal);
+        p    = glm::vec3(gPipeline.mHeroProbeManager.mMirrorPosition);
         enorm = mul_mat4_vec3(invtrans, norm);
         enorm = glm::normalize(enorm);
         ep = mul_mat4_vec3(mat, p);
diff --git a/indra/newview/llspatialpartition.cpp b/indra/newview/llspatialpartition.cpp
index 70c5a0183d..47a9a50ff2 100644
--- a/indra/newview/llspatialpartition.cpp
+++ b/indra/newview/llspatialpartition.cpp
@@ -2712,12 +2712,8 @@ void renderTexturePriority(LLDrawable* drawable)
 
         LLGLDisable blend(GL_BLEND);
 
-        //LLViewerTexture* imagep = facep->getTexture();
-        //if (imagep)
         if (facep)
         {
-
-            //F32 vsize = imagep->mMaxVirtualSize;
             F32 vsize = facep->getPixelArea();
 
             if (vsize > sCurMaxTexPriority)
@@ -2743,18 +2739,6 @@ void renderTexturePriority(LLDrawable* drawable)
         size.mul(0.5f);
         size.add(LLVector4a(0.01f));
         drawBox(center, size);
-
-        /*S32 boost = imagep->getBoostLevel();
-        if (boost>LLGLTexture::BOOST_NONE)
-        {
-            F32 t = (F32) boost / (F32) (LLGLTexture::BOOST_MAX_LEVEL-1);
-            LLVector4 col = lerp(boost_cold, boost_hot, t);
-            LLGLEnable blend_on(GL_BLEND);
-            gGL.blendFunc(GL_SRC_ALPHA, GL_ONE);
-            gGL.diffuseColor4fv(col.mV);
-            drawBox(center, size);
-            gGL.blendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-        }*/
     }
 }
 
diff --git a/indra/newview/llstartup.cpp b/indra/newview/llstartup.cpp
index eb7512cc73..9b7ca7a383 100644
--- a/indra/newview/llstartup.cpp
+++ b/indra/newview/llstartup.cpp
@@ -1676,7 +1676,7 @@ bool idle_startup()
         login->setLastExecDuration(gLastExecDuration);
         login->setLastExecEvent(last_exec_event);
 // </AW: crash report grid correctness>
-
+        login->setLastAgentSessionId(gLastAgentSessionId);
 
         // This call to LLLoginInstance::connect() starts the
         // authentication process.
@@ -2084,7 +2084,7 @@ bool idle_startup()
         }
         else if (regionp->capabilitiesError())
         {
-            LL_WARNS("AppInit") << "Failed to get capabilities. Backing up to login screen!" << LL_ENDL;
+            LL_WARNS("AppInit") << "Failed to get capabilities. Logging out and backing up to login screen!" << LL_ENDL;
             if (gRememberPassword)
             {
                 LLNotificationsUtil::add("LoginPacketNeverReceived", LLSD(), LLSD(), login_alert_status);
@@ -2093,6 +2093,15 @@ bool idle_startup()
             {
                 LLNotificationsUtil::add("LoginPacketNeverReceivedNoTP", LLSD(), LLSD(), login_alert_status);
             }
+
+            // Session was created, don't just hang up on server, send a logout request
+            LLMessageSystem* msg = gMessageSystem;
+            msg->newMessageFast(_PREHASH_LogoutRequest);
+            msg->nextBlockFast(_PREHASH_AgentData);
+            msg->addUUIDFast(_PREHASH_AgentID, gAgent.getID());
+            msg->addUUIDFast(_PREHASH_SessionID, gAgent.getSessionID());
+            gAgent.sendReliableMessage();
+
             reset_login();
         }
         else
@@ -2100,7 +2109,7 @@ bool idle_startup()
             U32 num_retries = regionp->getNumSeedCapRetries();
             if (num_retries > MAX_SEED_CAP_ATTEMPTS_BEFORE_ABORT)
             {
-                LL_WARNS("AppInit") << "Failed to get capabilities. Backing up to login screen!" << LL_ENDL;
+                LL_WARNS("AppInit") << "Failed to get capabilities. Logging out and backing up to login screen!" << LL_ENDL;
                 if (gRememberPassword)
                 {
                     LLNotificationsUtil::add("LoginPacketNeverReceived", LLSD(), LLSD(), login_alert_status);
@@ -2109,6 +2118,15 @@ bool idle_startup()
                 {
                     LLNotificationsUtil::add("LoginPacketNeverReceivedNoTP", LLSD(), LLSD(), login_alert_status);
                 }
+
+                // Session was created, don't just hang up on server, send a logout request
+                LLMessageSystem* msg = gMessageSystem;
+                msg->newMessageFast(_PREHASH_LogoutRequest);
+                msg->nextBlockFast(_PREHASH_AgentData);
+                msg->addUUIDFast(_PREHASH_AgentID, gAgent.getID());
+                msg->addUUIDFast(_PREHASH_SessionID, gAgent.getSessionID());
+                gAgent.sendReliableMessage();
+
                 reset_login();
             }
             else if (num_retries > 0)
@@ -2474,7 +2492,7 @@ bool idle_startup()
 
         if (!gAgentMovementCompleted && timeout.getElapsedTimeF32() > STATE_AGENT_WAIT_TIMEOUT)
         {
-            LL_WARNS("AppInit") << "Backing up to login screen!" << LL_ENDL;
+            LL_WARNS("AppInit") << "Timeout on agent movement. Sending logout and backing up to login screen!" << LL_ENDL;
             if (gRememberPassword)
             {
                 LLNotificationsUtil::add("LoginPacketNeverReceived", LLSD(), LLSD(), login_alert_status);
@@ -2483,6 +2501,15 @@ bool idle_startup()
             {
                 LLNotificationsUtil::add("LoginPacketNeverReceivedNoTP", LLSD(), LLSD(), login_alert_status);
             }
+
+            // Session was created, don't just hang up on server, send a logout request
+            LLMessageSystem* msg = gMessageSystem;
+            msg->newMessageFast(_PREHASH_LogoutRequest);
+            msg->nextBlockFast(_PREHASH_AgentData);
+            msg->addUUIDFast(_PREHASH_AgentID, gAgent.getID());
+            msg->addUUIDFast(_PREHASH_SessionID, gAgent.getSessionID());
+            gAgent.sendReliableMessage();
+
             reset_login();
         }
         return false;
@@ -4554,6 +4581,7 @@ bool process_login_success_response(U32 &first_sim_size_x, U32 &first_sim_size_y
     text = response["session_id"].asString();
     if(!text.empty()) gAgentSessionID.set(text);
 //  gDebugInfo["SessionID"] = text;
+    LLAppViewer::instance()->recordSessionToMarker();
 
     // Session id needed for parcel info request in LLUrlEntryParcel
     // to resolve parcel name.
diff --git a/indra/newview/llviewercamera.cpp b/indra/newview/llviewercamera.cpp
index d18e7e570b..0df185e716 100644
--- a/indra/newview/llviewercamera.cpp
+++ b/indra/newview/llviewercamera.cpp
@@ -434,7 +434,7 @@ bool LLViewerCamera::projectPosAgentToScreen(const LLVector3 &pos_agent, LLCoord
 
     LLRect world_view_rect = gViewerWindow->getWorldViewRectRaw();
     glm::ivec4 viewport(world_view_rect.mLeft, world_view_rect.mBottom, world_view_rect.getWidth(), world_view_rect.getHeight());
-    glm::vec3 win_coord = glm::project(glm::make_vec3(pos_agent.mV), get_current_modelview(), get_current_projection(), viewport);
+    glm::vec3 win_coord = glm::project(glm::vec3(pos_agent), get_current_modelview(), get_current_projection(), viewport);
 
     {
         // convert screen coordinates to virtual UI coordinates
@@ -528,7 +528,7 @@ bool LLViewerCamera::projectPosAgentToScreenEdge(const LLVector3 &pos_agent,
     LLRect world_view_rect = gViewerWindow->getWorldViewRectRaw();
 
     glm::ivec4 viewport(world_view_rect.mLeft, world_view_rect.mBottom, world_view_rect.getWidth(), world_view_rect.getHeight());
-    glm::vec3 win_coord = glm::project(glm::make_vec3(pos_agent.mV), get_current_modelview(), get_current_projection(), viewport);
+    glm::vec3 win_coord = glm::project(glm::vec3(pos_agent), get_current_modelview(), get_current_projection(), viewport);
 
     {
         win_coord.x /= gViewerWindow->getDisplayScale().mV[VX];
diff --git a/indra/newview/llviewershadermgr.cpp b/indra/newview/llviewershadermgr.cpp
index 98411336c7..9b845cc6a1 100644
--- a/indra/newview/llviewershadermgr.cpp
+++ b/indra/newview/llviewershadermgr.cpp
@@ -627,6 +627,8 @@ void LLViewerShaderMgr::setShaders()
     else
     {
         // "ShaderLoading" and "Shader" need to be logged
+        LL_WARNS("Shader") << "Failed loading basic shaders.  Retrying with increased log level..." << LL_ENDL;
+
         LLError::ELevel lvl = LLError::getDefaultLevel();
         LLError::setDefaultLevel(LLError::LEVEL_DEBUG);
         loadBasicShaders();
@@ -847,7 +849,7 @@ std::string LLViewerShaderMgr::loadBasicShaders()
         // Note usage of GL_VERTEX_SHADER
         if (loadShaderFile(shaders[i].first, shaders[i].second, GL_VERTEX_SHADER, &attribs) == 0)
         {
-            LL_WARNS("Shader") << "Failed to load vertex shader " << shaders[i].first << LL_ENDL;
+            LL_WARNS("Shader") << "Failed to load basic vertex shader " << i << ": " << shaders[i].first << LL_ENDL;
             return shaders[i].first;
         }
     }
diff --git a/indra/newview/llviewertexture.cpp b/indra/newview/llviewertexture.cpp
index 6439c960a0..efbbd4d2a7 100644
--- a/indra/newview/llviewertexture.cpp
+++ b/indra/newview/llviewertexture.cpp
@@ -3005,8 +3005,6 @@ LLViewerLODTexture::LLViewerLODTexture(const std::string& url, FTType f_type, co
 void LLViewerLODTexture::init(bool firstinit)
 {
     mTexelsPerImage = 64*64;
-    mDiscardVirtualSize = 0.f;
-    mCalculatedDiscardLevel = -1.f;
 }
 
 //virtual
@@ -3087,8 +3085,6 @@ void LLViewerLODTexture::processTextureStats()
         {
             // Calculate the required scale factor of the image using pixels per texel
             discard_level = (F32)(log(mTexelsPerImage / mMaxVirtualSize) / log_4);
-            mDiscardVirtualSize = mMaxVirtualSize;
-            mCalculatedDiscardLevel = discard_level;
         }
 
         discard_level = floorf(discard_level);
@@ -3666,7 +3662,7 @@ void LLViewerMediaTexture::setPlaying(bool playing)
         {
             LLFace* facep = *iter;
             const LLTextureEntry* te = facep->getTextureEntry();
-            if (te->getGLTFMaterial())
+            if (te && te->getGLTFMaterial())
             {
                 // PBR material, switch emissive and basecolor
                 switchTexture(LLRender::EMISSIVE_MAP, *iter);
diff --git a/indra/newview/llviewertexture.h b/indra/newview/llviewertexture.h
index db618dbe4a..10a79515e9 100644
--- a/indra/newview/llviewertexture.h
+++ b/indra/newview/llviewertexture.h
@@ -578,10 +578,6 @@ public:
 
 private:
     void init(bool firstinit) ;
-
-private:
-    F32 mDiscardVirtualSize;        // Virtual size used to calculate desired discard
-    F32 mCalculatedDiscardLevel;    // Last calculated discard level
 };
 
 //
diff --git a/indra/newview/llvoavatar.cpp b/indra/newview/llvoavatar.cpp
index e5bdf5cd22..40c070515c 100644
--- a/indra/newview/llvoavatar.cpp
+++ b/indra/newview/llvoavatar.cpp
@@ -2053,8 +2053,8 @@ bool LLVOAvatar::lineSegmentIntersect(const LLVector4a& start, const LLVector4a&
             glm::mat4 inverse = glm::inverse(mat);
             glm::mat4 norm_mat = glm::transpose(inverse);
 
-            glm::vec3 p1(glm::make_vec3(start.getF32ptr()));
-            glm::vec3 p2(glm::make_vec3(end.getF32ptr()));
+            glm::vec3 p1(start);
+            glm::vec3 p2(end);
 
             p1 = mul_mat4_vec3(inverse, p1);
             p2 = mul_mat4_vec3(inverse, p2);
@@ -2062,12 +2062,12 @@ bool LLVOAvatar::lineSegmentIntersect(const LLVector4a& start, const LLVector4a&
             LLVector3 position;
             LLVector3 norm;
 
-            if (linesegment_sphere(LLVector3(glm::value_ptr(p1)), LLVector3(glm::value_ptr(p2)), LLVector3(0,0,0), 1.f, position, norm))
+            if (linesegment_sphere(LLVector3(p1), LLVector3(p2), LLVector3(0,0,0), 1.f, position, norm))
             {
-                glm::vec3 res_pos(glm::make_vec3(position.mV));
+                glm::vec3 res_pos(position);
                 res_pos = mul_mat4_vec3(mat, res_pos);
 
-                 glm::vec3 res_norm(glm::make_vec3(norm.mV));
+                 glm::vec3 res_norm(norm);
                 res_norm = glm::normalize(res_norm);
                 res_norm = glm::mat3(norm_mat) * res_norm;
 
diff --git a/indra/newview/llvovolume.cpp b/indra/newview/llvovolume.cpp
index 5c084c2868..37b5bd7970 100644
--- a/indra/newview/llvovolume.cpp
+++ b/indra/newview/llvovolume.cpp
@@ -6066,15 +6066,13 @@ void LLVolumeGeometryManager::rebuildGeom(LLSpatialGroup* group)
                 {
                     continue;
                 }
-                // <FS:Beq> FIRE-34589 - OpenSim crashes due to null facep. Only opensim, not sure why.
-                // LLFetchedGLTFMaterial *gltf_mat = (LLFetchedGLTFMaterial*) facep->getTextureEntry()->getGLTFRenderMaterial();
-                auto te = facep->getTextureEntry();
-                LLFetchedGLTFMaterial *gltf_mat = nullptr;
+
+                LLFetchedGLTFMaterial* gltf_mat = nullptr;
+                const LLTextureEntry* te = facep->getTextureEntry();
                 if (te)
                 {
                     gltf_mat = (LLFetchedGLTFMaterial*)te->getGLTFRenderMaterial();
-                }
-                // </FS:Beq>
+                } // if not te, continue?
                 bool is_pbr = gltf_mat != nullptr;
 
                 if (is_pbr)
@@ -6136,13 +6134,9 @@ void LLVolumeGeometryManager::rebuildGeom(LLSpatialGroup* group)
                 {
                     cur_total += facep->getGeomCount();
 
-                    const LLTextureEntry* te = facep->getTextureEntry();
                     LLViewerTexture* tex = facep->getTexture();
 
-                    // <FS:ND> More crash avoding ...
-                    // if (te->getGlow() > 0.f)
                     if (te && te->getGlow() > 0.f)
-                    // </FS:ND>
                     {
                         emissive = true;
                     }
@@ -6241,6 +6235,7 @@ void LLVolumeGeometryManager::rebuildGeom(LLSpatialGroup* group)
                             facep->mLastUpdateTime = gFrameTimeSeconds;
                         }
 
+                        if (te)
                         {
                             // <FS> Skip if no te entry
                             if (!te)
@@ -6309,6 +6304,11 @@ void LLVolumeGeometryManager::rebuildGeom(LLSpatialGroup* group)
                                 add_face(sFullbrightFaces, fullbright_count, facep);
                             }
                         }
+                        else // no texture entry
+                        {
+                            facep->setState(LLFace::FULLBRIGHT);
+                            add_face(sFullbrightFaces, fullbright_count, facep);
+                        }
                     }
                 }
                 else
diff --git a/indra/newview/pipeline.cpp b/indra/newview/pipeline.cpp
index 58052dc599..2e0db84afd 100644
--- a/indra/newview/pipeline.cpp
+++ b/indra/newview/pipeline.cpp
@@ -8654,13 +8654,13 @@ void LLPipeline::renderDeferredLighting()
 
         setupHWLights();  // to set mSun/MoonDir;
 
-        glm::vec4 tc(glm::make_vec4(mSunDir.mV));
+        glm::vec4 tc(mSunDir);
         tc = mat * tc;
-        mTransformedSunDir.set(glm::value_ptr(tc));
+        mTransformedSunDir.set(tc);
 
-        glm::vec4 tc_moon(glm::make_vec4(mMoonDir.mV));
+        glm::vec4 tc_moon(mMoonDir);
         tc_moon = mat * tc_moon;
-        mTransformedMoonDir.set(glm::value_ptr(tc_moon));
+        mTransformedMoonDir.set(tc_moon);
 
         if ((RenderDeferredSSAO && !gCubeSnapshot) || RenderShadowDetail > 0)
         {
@@ -8919,7 +8919,7 @@ void LLPipeline::renderDeferredLighting()
                             continue;
                         }
 
-                        glm::vec3 tc(glm::make_vec3(c));
+                        glm::vec3 tc(center);
                         tc = mul_mat4_vec3(mat, tc);
 
                         fullscreen_lights.push_back(LLVector4(tc.x, tc.y, tc.z, s));
@@ -9026,13 +9026,12 @@ void LLPipeline::renderDeferredLighting()
                     LLDrawable* drawablep = *iter;
                     LLVOVolume* volume = drawablep->getVOVolume();
                     LLVector3   center = drawablep->getPositionAgent();
-                    F32* c = center.mV;
                     F32         light_size_final = volume->getLightRadius() * 1.5f;
                     F32         light_falloff_final = volume->getLightFalloff(DEFERRED_LIGHT_FALLOFF);
 
                     sVisibleLightCount++;
 
-                    glm::vec3 tc(glm::make_vec3(c));
+                    glm::vec3 tc(center);
                     tc = mul_mat4_vec3(mat, tc);
 
                     setupSpotLight(gDeferredMultiSpotLightProgram, drawablep);
@@ -10167,10 +10166,7 @@ void LLPipeline::generateSunShadow(LLCamera& camera)
     LLVector3 lightDir = -caster_dir;
     lightDir.normVec();
 
-    glm::vec3 light_dir(glm::make_vec3(lightDir.mV));
-
     //create light space camera matrix
-
     LLVector3 at = lightDir;
 
     LLVector3 up = camera.getAtAxis();
@@ -10222,9 +10218,9 @@ void LLPipeline::generateSunShadow(LLCamera& camera)
         //get good split distances for frustum
         for (U32 i = 0; i < fp.size(); ++i)
         {
-            glm::vec3 v(glm::make_vec3(fp[i].mV));
+            glm::vec3 v(fp[i]);
             v = mul_mat4_vec3(saved_view, v);
-            fp[i].setVec(glm::value_ptr(v));
+            fp[i] = LLVector3(v);
         }
 
         min = fp[0];
@@ -10373,9 +10369,9 @@ void LLPipeline::generateSunShadow(LLCamera& camera)
 
             for (U32 i = 0; i < fp.size(); i++)
             {
-                glm::vec3 p = glm::make_vec3(fp[i].mV);
+                glm::vec3 p(fp[i]);
                 p = mul_mat4_vec3(view[j], p);
-                wpf.push_back(LLVector3(glm::value_ptr(p)));
+                wpf.push_back(LLVector3(p));
             }
 
             min = wpf[0];
@@ -10576,19 +10572,19 @@ void LLPipeline::generateSunShadow(LLCamera& camera)
                         view[j] = glm::inverse(view[j]);
                         //llassert(origin.isFinite());
 
-                        glm::vec3 origin_agent(glm::make_vec3(origin.mV));
+                        glm::vec3 origin_agent(origin);
 
                         //translate view to origin
                         origin_agent = mul_mat4_vec3(view[j], origin_agent);
 
-                        eye = LLVector3(glm::value_ptr(origin_agent));
+                        eye = LLVector3(origin_agent);
                         //llassert(eye.isFinite());
                         if (!hasRenderDebugMask(LLPipeline::RENDER_DEBUG_SHADOW_FRUSTA) && !gCubeSnapshot)
                         {
                             mShadowFrustOrigin[j] = eye;
                         }
 
-                        view[j] = look(LLVector3(glm::value_ptr(origin_agent)), lightDir, -up);
+                        view[j] = look(LLVector3(origin_agent), lightDir, -up);
 
                         F32 fx = 1.f/tanf(fovx);
                         F32 fz = 1.f/tanf(fovz);
diff --git a/indra/newview/skins/default/xui/en/floater_preferences_graphics_advanced.xml b/indra/newview/skins/default/xui/en/floater_preferences_graphics_advanced.xml
index d793c504a8..1e45782a20 100644
--- a/indra/newview/skins/default/xui/en/floater_preferences_graphics_advanced.xml
+++ b/indra/newview/skins/default/xui/en/floater_preferences_graphics_advanced.xml
@@ -126,7 +126,7 @@
       layout="topleft"
       top_delta="16"
       left="30"
-      width="130"
+      width="160"
       name="MaxTextureResolutionLabel"
       text_readonly_color="LabelDisabledColor">
         Maximum LOD resolution:
@@ -135,7 +135,7 @@
      control_name="RenderMaxTextureResolution"
      height="19"
      layout="topleft"
-     left_pad="40"
+     left_pad="10"
      top_delta="0"
      name="MaxTextureResolution"
      tool_tip="Maximum resolution for 'level of detail' textures"