diff --git a/.hgtags b/.hgtags
index 297cd547ef..176c2b99e9 100755
--- a/.hgtags
+++ b/.hgtags
@@ -575,3 +575,4 @@ ad0e15543836d64d6399d28b32852510435e344a 5.1.0-release
 7c00e5b6cb3d95712e9d8e29277c805bca2bda90 5.1.3-release
 7b6b020fd5ad9a8dc3670c5c92d1ca92e55fc485 5.1.4-release
 2ea47f358b171178eb9a95503a1670d519c2886f 5.1.5-release
+04538b8157c1f5cdacd9403f0a395452d4a93689 5.1.6-release
diff --git a/indra/llappearance/llwearable.cpp b/indra/llappearance/llwearable.cpp
index 18035fdd2f..750dcb5b63 100644
--- a/indra/llappearance/llwearable.cpp
+++ b/indra/llappearance/llwearable.cpp
@@ -187,7 +187,7 @@ void LLWearable::createLayers(S32 te, LLAvatarAppearance *avatarp)
 {
 	LLTexLayerSet *layer_set = NULL;
 	const LLAvatarAppearanceDictionary::TextureEntry *texture_dict = LLAvatarAppearanceDictionary::getInstance()->getTexture((ETextureIndex)te);
-	if (texture_dict->mIsUsedByBakedTexture)
+	if (texture_dict && texture_dict->mIsUsedByBakedTexture)
 	{
 		const EBakedTextureIndex baked_index = texture_dict->mBakedTextureIndex;
 		
@@ -200,7 +200,7 @@ void LLWearable::createLayers(S32 te, LLAvatarAppearance *avatarp)
 	}
 	else
 	{
-		   LL_ERRS() << "could not find layerset for LTO in wearable!" << LL_ENDL;
+		   LL_WARNS() << "could not find layerset for LTO in wearable!" << LL_ENDL;
 	}
 }
 
diff --git a/indra/newview/VIEWER_VERSION.txt b/indra/newview/VIEWER_VERSION.txt
index 8710cfdff2..cbad66a094 100644
--- a/indra/newview/VIEWER_VERSION.txt
+++ b/indra/newview/VIEWER_VERSION.txt
@@ -1 +1 @@
-5.1.6
+5.1.7
diff --git a/indra/newview/llavatarrenderinfoaccountant.cpp b/indra/newview/llavatarrenderinfoaccountant.cpp
index 7413dbed20..7c7f55f68c 100644
--- a/indra/newview/llavatarrenderinfoaccountant.cpp
+++ b/indra/newview/llavatarrenderinfoaccountant.cpp
@@ -286,6 +286,9 @@ void LLAvatarRenderInfoAccountant::sendRenderInfoToRegion(LLViewerRegion * regio
         && regionp->getRenderInfoReportTimer().hasExpired() // Time to make request)
         )
 	{
+        // make sure we won't re-report, coro will update timer with correct time later
+        regionp->getRenderInfoReportTimer().resetWithExpiry(SECS_BETWEEN_REGION_REPORTS);
+
         std::string coroname =
             LLCoros::instance().launch("LLAvatarRenderInfoAccountant::avatarRenderInfoReportCoro",
             boost::bind(&LLAvatarRenderInfoAccountant::avatarRenderInfoReportCoro, url, regionp->getHandle()));
@@ -306,6 +309,9 @@ void LLAvatarRenderInfoAccountant::getRenderInfoFromRegion(LLViewerRegion * regi
             << " from " << url
             << LL_ENDL;
 
+        // make sure we won't re-request, coro will update timer with correct time later
+        regionp->getRenderInfoRequestTimer().resetWithExpiry(SECS_BETWEEN_REGION_REQUEST);
+
 		// First send a request to get the latest data
         std::string coroname =
             LLCoros::instance().launch("LLAvatarRenderInfoAccountant::avatarRenderInfoGetCoro",
diff --git a/indra/newview/llfloateravatartextures.cpp b/indra/newview/llfloateravatartextures.cpp
index be06dfc7e6..cbf7c019cb 100644
--- a/indra/newview/llfloateravatartextures.cpp
+++ b/indra/newview/llfloateravatartextures.cpp
@@ -86,7 +86,7 @@ static void update_texture_ctrl(LLVOAvatar* avatarp,
 {
 	LLUUID id = IMG_DEFAULT_AVATAR;
 	const LLAvatarAppearanceDictionary::TextureEntry* tex_entry = LLAvatarAppearanceDictionary::getInstance()->getTexture(te);
-	if (tex_entry->mIsLocalTexture)
+	if (tex_entry && tex_entry->mIsLocalTexture)
 	{
 		if (avatarp->isSelf())
 		{
@@ -104,7 +104,7 @@ static void update_texture_ctrl(LLVOAvatar* avatarp,
 	}
 	else
 	{
-		id = avatarp->getTEref(te).getID();
+		id = tex_entry ? avatarp->getTEref(te)->getID() : IMG_DEFAULT_AVATAR;
 	}
 	//id = avatarp->getTE(te)->getID();
 	if (id == IMG_DEFAULT_AVATAR)
diff --git a/indra/newview/llviewerwearable.cpp b/indra/newview/llviewerwearable.cpp
index 1fad21dabf..5de7937ed3 100644
--- a/indra/newview/llviewerwearable.cpp
+++ b/indra/newview/llviewerwearable.cpp
@@ -303,7 +303,7 @@ void LLViewerWearable::setTexturesToDefaults()
 LLUUID LLViewerWearable::getDefaultTextureImageID(ETextureIndex index) const
 {
 	const LLAvatarAppearanceDictionary::TextureEntry *texture_dict = LLAvatarAppearanceDictionary::getInstance()->getTexture(index);
-	const std::string &default_image_name = texture_dict->mDefaultImageName;
+	const std::string &default_image_name = texture_dict ? texture_dict->mDefaultImageName : "";
 	if (default_image_name == "")
 	{
 		return IMG_DEFAULT_AVATAR;
diff --git a/indra/newview/llvoavatar.cpp b/indra/newview/llvoavatar.cpp
index 88d7ebc089..239e6019ea 100644
--- a/indra/newview/llvoavatar.cpp
+++ b/indra/newview/llvoavatar.cpp
@@ -1043,7 +1043,7 @@ void LLVOAvatar::dumpBakedStatus()
 				const ETextureIndex index = baked_dict->mTextureIndex;
 				if (!inst->isTextureDefined(index))
 				{
-					LL_CONT << " " << LLAvatarAppearanceDictionary::getInstance()->getTexture(index)->mName;
+					LL_CONT << " " << (LLAvatarAppearanceDictionary::getInstance()->getTexture(index) ? LLAvatarAppearanceDictionary::getInstance()->getTexture(index)->mName : "");
 				}
 			}
 			LL_CONT << " ) " << inst->getUnbakedPixelAreaRank();
@@ -5338,7 +5338,7 @@ void LLVOAvatar::collectLocalTextureUUIDs(std::set<LLUUID>& ids) const
 			if (imagep)
 			{
 				const LLAvatarAppearanceDictionary::TextureEntry *texture_dict = LLAvatarAppearanceDictionary::getInstance()->getTexture((ETextureIndex)texture_index);
-				if (texture_dict->mIsLocalTexture)
+				if (texture_dict && texture_dict->mIsLocalTexture)
 				{
 					ids.insert(imagep->getID());
 				}
@@ -5495,8 +5495,8 @@ void LLVOAvatar::updateTextures()
 			if (imagep)
 			{
 				const LLAvatarAppearanceDictionary::TextureEntry *texture_dict = LLAvatarAppearanceDictionary::getInstance()->getTexture((ETextureIndex)texture_index);
-				const EBakedTextureIndex baked_index = texture_dict->mBakedTextureIndex;
-				if (texture_dict->mIsLocalTexture)
+				const EBakedTextureIndex baked_index = texture_dict ? texture_dict->mBakedTextureIndex : EBakedTextureIndex::BAKED_NUM_INDICES;
+				if (texture_dict && texture_dict->mIsLocalTexture)
 				{
 					addLocalTextureStats((ETextureIndex)texture_index, imagep, texel_area_ratio, render_avatar, mBakedTextureDatas[baked_index].mIsUsed);
 				}
diff --git a/indra/newview/llvoavatarself.cpp b/indra/newview/llvoavatarself.cpp
index a90668e57e..e51c5936bd 100644
--- a/indra/newview/llvoavatarself.cpp
+++ b/indra/newview/llvoavatarself.cpp
@@ -3155,6 +3155,8 @@ void LLVOAvatarSelf::requestLayerSetUpdate(ETextureIndex index )
 			if( mUpperBodyLayerSet )
 				mUpperBodyLayerSet->requestUpdate(); */
 	const LLAvatarAppearanceDictionary::TextureEntry *texture_dict = LLAvatarAppearanceDictionary::getInstance()->getTexture(index);
+	if (!texture_dict)
+		return;
 	if (!texture_dict->mIsLocalTexture || !texture_dict->mIsUsedByBakedTexture)
 		return;
 	const EBakedTextureIndex baked_index = texture_dict->mBakedTextureIndex;
@@ -3171,7 +3173,7 @@ LLViewerTexLayerSet* LLVOAvatarSelf::getLayerSet(ETextureIndex index) const
                case TEX_HEAD_BODYPAINT:
                        return mHeadLayerSet; */
        const LLAvatarAppearanceDictionary::TextureEntry *texture_dict = LLAvatarAppearanceDictionary::getInstance()->getTexture(index);
-       if (texture_dict->mIsUsedByBakedTexture)
+       if (texture_dict && texture_dict->mIsUsedByBakedTexture)
        {
                const EBakedTextureIndex baked_index = texture_dict->mBakedTextureIndex;
                return getLayerSet(baked_index);