Description

This is a common crash that appears to have started in the 4.16.1 hotfix, but has occurred with more frequency in 4.16.2.

User Descriptions

  • After the blueprint tutorial, I pressed "play", pressed ESC, and then tried to start the UE interface tutorial.

Source Context

 110       /** 
  111        * Walks up the list of outers until it finds the highest one.
  112        *
  113        * @return outermost non NULL Outer.
  114        */
  115       UPackage* UObjectBaseUtility::GetOutermost() const
  116       {
  117       	UObject* Top = (UObject*)this;
  118       	for (;;)
  119       	{
  120 ***** 		UObject* CurrentOuter = Top->GetOuter();
  121       		if (!CurrentOuter)
  122       		{
  123       			return CastChecked<UPackage>(Top);
  124       		}
  125       		Top = CurrentOuter;
  126       	}
  127       }
Steps to Reproduce

repro steps currently unknown. Appears related to the tutorials

Callstack
Access violation - code c0000005 (first/second chance not available)

UE4Editor_CoreUObject!UObjectBaseUtility::GetOutermost() [uobjectbaseutility.cpp:121]
UE4Editor_IntroTutorials!FIntroTutorials::AnalyticsEventNameFromTutorial() [introtutorials.cpp:58]
UE4Editor_IntroTutorials!STutorialsBrowser::OnTutorialSelected() [stutorialsbrowser.cpp:877]
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_Tutorial::OnClicked() [stutorialsbrowser.cpp:450]
UE4Editor_IntroTutorials!TMemberFunctionCaller<FTutorialListEntry_Tutorial,FReply() [delegateinstanceinterface.h:165]
UE4Editor_IntroTutorials!UE4Tuple_Private::TTupleImpl<TIntegerSequence<unsigned int,0>,bool>::ApplyAfter<TMemberFunctionCaller<FTutorialListEntry_Tutorial,FReply() [tuple.h:422]
UE4Editor_IntroTutorials!TBaseSPMethodDelegateInstance<1,FTutorialListEntry_Tutorial 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()

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Fixed
ComponentTools
Affects Versions4.16.14.16.2
Target Fix4.17
Fix Commit3524241
Main Commit3555226
Release Commit3524241
CreatedJul 6, 2017
ResolvedJul 6, 2017
UpdatedApr 27, 2018