This is a common crash occurring in the 4.16.2 release. Records indicate this has also occurred in 4.16.0 and 4.16.1, but with less apparent frequency.
User Descriptions
Source Context
184 #if PLATFORM_WINDOWS && defined(__clang__) 185 CORE_API const FText& FText::GetEmpty() // @todo clang: Workaround for missing symbol export 186 { 187 static const FText StaticEmptyText = FText(FText::EInitToEmptyString::Value); 188 return StaticEmptyText; 189 } 190 #endif 191 192 #if PLATFORM_COMPILER_HAS_DEFAULTED_FUNCTIONS 193 ***** FText::FText(const FText& Other) = default; 194 FText::FText(FText&& Other) = default; 195 FText& FText::operator=(const FText& Other) = default; 196 FText& FText::operator=(FText&& Other) = default; 197 #else 198 FText::FText(const FText& Source) 199 : TextData(Source.TextData) 200 , Flags(Source.Flags) 201 { 202 }
This is caused by a GC at a bad time. You can get the same callstack by mimicking a GC, which is almost guaranteed to be the problem for users.
1. Open the tutorials browser (blue hat in the top right corner of the editor)
2. Press ~ to open the console.
3. Type "obj gc" without quotes and hit enter to force a garbage collect
4. Scroll through the tutorials list and you should crash
UE4Editor_Core!FText::FText() [text.cpp:194] UE4Editor_IntroTutorials!FTutorialListEntry_Tutorial::GetTitleText() [stutorialsbrowser.cpp:433] UE4Editor_IntroTutorials!FTutorialListEntry_Tutorial::SortAgainst() [stutorialsbrowser.cpp:443] UE4Editor_IntroTutorials!<lambda_ede9449541283e0afc645ea6e8fe9dd6>::operator() [stutorialsbrowser.cpp:970] UE4Editor_IntroTutorials!SortInternal<TSharedPtr<ITutorialListEntry,0>,TDereferenceWrapper<TSharedPtr<ITutorialListEntry,0>,<lambda_ede9449541283e0afc645ea6e8fe9dd6> > >() [sorting.h:75] UE4Editor_IntroTutorials!STutorialsBrowser::FilterTutorials() [stutorialsbrowser.cpp:976] UE4Editor_IntroTutorials!STutorialsBrowser::OnCategorySelected() [stutorialsbrowser.cpp:896] UE4Editor_IntroTutorials!TBaseSPMethodDelegateInstance<0,STutorialsBrowser,0,TTypeWrapper<void> __cdecl() [delegateinstancesimpl.h:327] UE4Editor_IntroTutorials!TBaseSPMethodDelegateInstance<0,STutorialsBrowser,0,void __cdecl() [delegateinstancesimpl.h:434] UE4Editor_IntroTutorials!FTutorialListEntry_Category::OnClicked() [stutorialsbrowser.cpp:222] UE4Editor_IntroTutorials!TMemberFunctionCaller<FTutorialListEntry_Category,FReply() [delegateinstanceinterface.h:165] UE4Editor_IntroTutorials!UE4Tuple_Private::TTupleImpl<TIntegerSequence<unsigned int> >::ApplyAfter<TMemberFunctionCaller<FTutorialListEntry_Category,FReply() [tuple.h:497] UE4Editor_IntroTutorials!TBaseSPMethodDelegateInstance<1,FTutorialListEntry_Category const ,0,FReply __cdecl() [delegateinstancesimpl.h:327] UE4Editor_Slate!TBaseDelegate<FReply>::Execute() [delegatesignatureimpl.inl:537] UE4Editor_Slate!SButton::OnMouseButtonUp() [sbutton.cpp:278] UE4Editor_Slate!<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1>::operator() [slateapplication.cpp:5049] UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,<lambda_8d0e9a1da76abd0a756a3a9d775f5ed1> >() [slateapplication.cpp:239] UE4Editor_Slate!FSlateApplication::RoutePointerUpEvent() [slateapplication.cpp:5038] UE4Editor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() [slateapplication.cpp:5515] UE4Editor_Slate!FSlateApplication::OnMouseUp() [slateapplication.cpp:5495] UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() [windowsapplication.cpp:1704] UE4Editor_Core!FWindowsApplication::DeferMessage() [windowsapplication.cpp:2127] UE4Editor_Core!FWindowsApplication::ProcessMessage() [windowsapplication.cpp:867] UE4Editor_Core!FWindowsApplication::AppWndProc() [windowsapplication.cpp:714] user32!UserCallWinProcCheckWow() user32!DispatchMessageWorker() UE4Editor_Core!FWindowsPlatformMisc::PumpMessages() [windowsplatformmisc.cpp:1009] UE4Editor!FEngineLoop::Tick() [launchengineloop.cpp:3058] UE4Editor!GuardedMain() [launch.cpp:166] UE4Editor!GuardedMainWrapper() [launchwindows.cpp:134] UE4Editor!WinMain() [launchwindows.cpp:210] UE4Editor!__scrt_common_main_seh() [exe_common.inl:253] kernel32!BaseThreadInitThunk() ntdll!RtlUserThreadStart()
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-46831 in the post.