Description

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below.

Error message:

Assertion failed: CurrentThreadIfKnown == GetCurrentThread() [Link Removed] [Line: 1117]

Source Context:

 1106       		if (ENamedThreads::GetThreadIndex(CurrentThreadIfKnown) == ENamedThreads::AnyThread)
 1107       		{
 1108       			bool bIsHiPri = !!ENamedThreads::GetPriority(CurrentThreadIfKnown);
 1109       			check(!ENamedThreads::GetQueueIndex(CurrentThreadIfKnown));
 1110       			CurrentThreadIfKnown = GetCurrentThread();
 1111       			CurrentThread = bIsHiPri ? ENamedThreads::HiPri(CurrentThreadIfKnown) : CurrentThreadIfKnown;
 1112       		}
 1113       		else
 1114       		{
 1115       			CurrentThreadIfKnown = ENamedThreads::GetThreadIndex(CurrentThreadIfKnown);
 1116       			check(CurrentThreadIfKnown == GetCurrentThread());
 1117       			// we don't modify CurrentThread here because it might be a local queue
 1118       		}
 1119       
 1120 ***** 		if (CurrentThreadIfKnown != ENamedThreads::AnyThread && CurrentThreadIfKnown < NumNamedThreads && !IsThreadProcessingTasks(CurrentThread))
 1121       		{
 1122       			bool bAnyPending = false;
 1123       			for (int32 Index = 0; Index < Tasks.Num(); Index++)
 1124       			{
 1125       				if (!Tasks[Index]->IsComplete())
 1126       				{
 1127       					bAnyPending = true;
 1128       					break;
 1129       				}
 1130       			}
 1131       			if (!bAnyPending)
 1132       			{
 1133       				return;
 1134       			}
 1135       			// named thread process tasks while we wait

Most recent user affected CL: 2872498

Logs:
[Link Removed]
[Link Removed]
[Link Removed]

*Issue call stack shares some similarities with * OR-17692

CrashReporter User Descriptions:

  • How the heck do you play a video? Nothing works. The same video plays just fine with----- project settings--->movies
    [Link Removed]
  • When trying to play as standalone, getting black screen. And it crashes when shutting it.
Steps to Reproduce

Unable to determine repro steps based on user descriptions.

Callstack
UE4Editor_Core!FTaskGraphImplementation::WaitUntilTasksComplete() [taskgraph.cpp:1121]
UE4Editor_RenderCore!FTaskGraphInterface::WaitUntilTaskCompletes() [taskgraphinterfaces.h:212]
UE4Editor_RenderCore!StopRenderingThread() [renderingthread.cpp:646]
UE4Editor_RenderCore!FSuspendRenderingThread::FSuspendRenderingThread() [renderingthread.cpp:84]
UE4Editor_Engine!FSceneViewport::UpdateViewportRHI() [sceneviewport.cpp:1131]
UE4Editor_Engine!FSceneViewport::~FSceneViewport() [sceneviewport.cpp:45]
UE4Editor_Engine!FSceneViewport::`vector deleting destructor'()
UE4Editor_Engine!UGameEngine::OnGameWindowClosed() [gameengine.cpp:373]
UE4Editor_Engine!TBaseUObjectMethodDelegateInstance<0,UGameEngine,void __cdecl() [delegateinstancesimpl_variadics.inl:772]
UE4Editor_SlateCore!SWindow::NotifyWindowBeingDestroyed() [swindow.cpp:1114]
UE4Editor_Slate!FSlateApplication::PrivateDestroyWindow() [slateapplication.cpp:5339]
UE4Editor_Slate!FSlateApplication::DestroyWindowsImmediately() [slateapplication.cpp:2445]
UE4Editor_Slate!FSlateApplication::RequestDestroyWindow() [slateapplication.cpp:1939]
UE4Editor_SlateCore!SWindow::RequestDestroyWindow() [swindow.cpp:1100]
UE4Editor_Slate!FSlateApplication::OnWindowClose() [slateapplication.cpp:5373]
UE4Editor_Core!FWindowsApplication::ProcessDeferredMessage() [windowsapplication.cpp:1553]
UE4Editor_Core!FWindowsApplication::ProcessDeferredEvents() [windowsapplication.cpp:1746]
UE4Editor_Slate!FSlateApplication::Tick() [slateapplication.cpp:1304]
UE4Editor_MoviePlayer!FSlateLoadingSynchronizationMechanism::SlateThreadRunMainLoop() [movieplayerthreading.cpp:132]
UE4Editor_MoviePlayer!FSlateLoadingThreadTask::Run() [movieplayerthreading.cpp:163]
UE4Editor_Core!FRunnableThreadWin::Run() [windowsrunnablethread.cpp:74]

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Fixed
ComponentTools
Affects Versions4.94.104.15
Target Fix4.16
Fix Commit3372709
Main Commit3379345
Release Commit3390270
CreatedApr 5, 2016
ResolvedMar 30, 2017
UpdatedMay 30, 2017