diff --git a/indra/llcommon/llstring.cpp b/indra/llcommon/llstring.cpp
index 4ad2fca84a..383e4c121c 100644
--- a/indra/llcommon/llstring.cpp
+++ b/indra/llcommon/llstring.cpp
@@ -365,6 +365,30 @@ S32 wchar_utf8_length(const llwchar wc)
 	}
 }
 
+std::string wchar_utf8_preview(const llwchar wc)
+{
+    std::ostringstream oss;
+    oss << std::hex << std::uppercase << (U32)wc;
+
+    U8 out_bytes[8];
+    U32 size = (U32)wchar_to_utf8chars(wc, (char*)out_bytes);
+
+    if (size > 1)
+    {
+        oss << " [";
+        for (U32 i = 0; i < size; ++i)
+        {
+            if (i)
+            {
+                oss << ", ";
+            }
+            oss << (int)out_bytes[i];
+        }
+        oss << "]";
+    }
+
+    return oss.str();
+}
 
 S32 wstring_utf8_length(const LLWString& wstr)
 {
diff --git a/indra/llcommon/llstring.h b/indra/llcommon/llstring.h
index 345fc5106b..d592a642fb 100644
--- a/indra/llcommon/llstring.h
+++ b/indra/llcommon/llstring.h
@@ -691,6 +691,8 @@ LL_COMMON_API S32 wstring_utf8_length(const LLWString& wstr);
 // Length in bytes of this wide char in a UTF8 string
 LL_COMMON_API S32 wchar_utf8_length(const llwchar wc); 
 
+LL_COMMON_API std::string wchar_utf8_preview(const llwchar wc);
+
 LL_COMMON_API std::string utf8str_tolower(const std::string& utf8str);
 
 // Length in llwchar (UTF-32) of the first len units (16 bits) of the given UTF-16 string.
diff --git a/indra/llui/lltexteditor.cpp b/indra/llui/lltexteditor.cpp
index db479f38ce..207b2c3c27 100644
--- a/indra/llui/lltexteditor.cpp
+++ b/indra/llui/lltexteditor.cpp
@@ -733,6 +733,7 @@ void LLTextEditor::selectByCursorPosition(S32 prev_cursor_pos, S32 next_cursor_p
 
 void LLTextEditor::insertEmoji(llwchar emoji)
 {
+	LL_INFOS() << "LLTextEditor::insertEmoji(" << wchar_utf8_preview(emoji) << ")" << LL_ENDL;
 	auto styleParams = LLStyle::Params();
 	styleParams.font = LLFontGL::getFontEmoji();
 	auto segment = new LLEmojiTextSegment(new LLStyle(styleParams), mCursorPos, mCursorPos + 1, *this);
diff --git a/indra/llui/llview.cpp b/indra/llui/llview.cpp
index d79e04e159..80b37016a3 100644
--- a/indra/llui/llview.cpp
+++ b/indra/llui/llview.cpp
@@ -1080,7 +1080,7 @@ BOOL LLView::handleUnicodeChar(llwchar uni_char, BOOL called_from_parent)
 			handled = handleUnicodeCharHere(uni_char);
 			if (handled && LLView::sDebugKeys)
 			{
-				LL_INFOS() << "Unicode key handled by " << getName() << LL_ENDL;
+				LL_INFOS() << "Unicode key " << wchar_utf8_preview(uni_char) << " is handled by " << getName() << LL_ENDL;
 			}
 		}
 	}
diff --git a/indra/llwindow/llopenglview-objc.mm b/indra/llwindow/llopenglview-objc.mm
index 457fe29c72..5d923db714 100644
--- a/indra/llwindow/llopenglview-objc.mm
+++ b/indra/llwindow/llopenglview-objc.mm
@@ -730,6 +730,19 @@ attributedStringInfo getSegments(NSAttributedString *str)
 
 - (void)insertText:(id)aString replacementRange:(NSRange)replacementRange
 {
+	// SL-19801 Special workaround for system emoji picker
+	if ([aString length] == 2)
+	{
+		uint32_t b0 = [aString characterAtIndex:0];
+		uint32_t b1 = [aString characterAtIndex:1];
+		if (((b0 & 0xF000) == 0xD000) && ((b1 & 0xF000) == 0xD000))
+		{
+			uint32_t b = 0x10000 | ((b0 & 0x3F) << 10) | (b1 & 0x3FF);
+			callUnicodeCallback(b, 0);
+			return;
+		}
+	}
+
 	if (!mHasMarkedText)
 	{
 		for (NSInteger i = 0; i < [aString length]; i++)
diff --git a/indra/newview/llfloaterimsessiontab.cpp b/indra/newview/llfloaterimsessiontab.cpp
index 9b2296d9ae..2e9cdc0f35 100644
--- a/indra/newview/llfloaterimsessiontab.cpp
+++ b/indra/newview/llfloaterimsessiontab.cpp
@@ -275,7 +275,7 @@ BOOL LLFloaterIMSessionTab::postBuild()
 	mEmojiRecentIconsCtrl->setVisible(false);
 
 	mEmojiPickerToggleBtn = getChild<LLButton>("emoji_picker_toggle_btn");
-	mEmojiPickerToggleBtn->setClickedCallback([this](LLUICtrl*, const LLSD&) { onEmojiPickerToggleBtnClicked(); });
+	mEmojiPickerToggleBtn->setClickedCallback([](LLUICtrl*, const LLSD&) { onEmojiPickerToggleBtnClicked(); });
 
 	mGearBtn = getChild<LLButton>("gear_btn");
 	mAddBtn = getChild<LLButton>("add_btn");
diff --git a/indra/newview/llinventorygallery.cpp b/indra/newview/llinventorygallery.cpp
index 6206d9b73d..2e8f4b5d45 100644
--- a/indra/newview/llinventorygallery.cpp
+++ b/indra/newview/llinventorygallery.cpp
@@ -2412,7 +2412,7 @@ void LLInventoryGallery::startDrag()
             ids.push_back(selected_id);
         }
 
-        const LLViewerInventoryCategory* cat = gInventory.getCategory(selected_id);        
+        const LLViewerInventoryCategory* cat = gInventory.getCategory(selected_id);
         if (cat && gInventory.isObjectDescendentOf(selected_id, gInventory.getRootFolderID())
             && !LLFolderType::lookupIsProtectedType((cat)->getPreferredType()))
         {
@@ -2426,7 +2426,7 @@ void LLInventoryGallery::startDrag()
             ids.push_back(selected_id);
         }
     }
-    LLToolDragAndDrop::getInstance()->beginMultiDrag(types, ids, LLToolDragAndDrop::SOURCE_AGENT);
+    LLToolDragAndDrop::getInstance()->beginMultiDrag(types, ids, src);
 }
 
 bool LLInventoryGallery::areViewsInitialized()