This is a trending crash coming out of the 4.18 release. It may be a regression.
User Descriptions
Source Context
1138 #if WITH_EDITOR || IS_PROGRAM 1139 1140 // mainly concerned about the cooker here, but anyway, the editor can run without a frame for a very long time (hours) and we do not have enough lock free links. 1141 1142 /** The set of deferred cleanup objects which are pending cleanup. */ 1143 TArray<FDeferredCleanupInterface*> PendingCleanupObjectsList; 1144 FCriticalSection PendingCleanupObjectsListLock; 1145 1146 FPendingCleanupObjects::FPendingCleanupObjects() 1147 { 1148 check(IsInGameThread()); 1149 { 1150 ***** FScopeLock Lock(&PendingCleanupObjectsListLock); 1151 Exchange(CleanupArray, PendingCleanupObjectsList); 1152 } 1153 }
repro steps currently unknown. Related to VR Mode based on user comments.
Assertion failed: IsInGameThread() [File:D:\Build\++UE4+Release-4.18+Compile\Sync\Engine\Source\Runtime\RenderCore\Private\RenderingThread.cpp] [Line: 1149] UE4Editor_RenderCore!FPendingCleanupObjects::FPendingCleanupObjects() [renderingthread.cpp:1151] UE4Editor_RenderCore!FlushRenderingCommands() [renderingthread.cpp:1102] UE4Editor_UnrealEd!FAssetThumbnailPool::ReleaseResources() [assetthumbnail.cpp:881] UE4Editor_UnrealEd!FAssetThumbnailPool::~FAssetThumbnailPool() [assetthumbnail.cpp:823] UE4Editor_UnrealEd!FAssetThumbnailPool::`vector deleting destructor'() UE4Editor_LevelEditor!SLevelEditor::~SLevelEditor() [sleveleditor.cpp:278] UE4Editor_SlateCore!FSimpleSlot::~FSimpleSlot() UE4Editor_SlateCore!SCompoundWidget::~SCompoundWidget() UE4Editor_SlateCore!TIndirectArray<SOverlay::FOverlaySlot,FDefaultAllocator>::DestructAndFreeItems() [indirectarray.h:444] UE4Editor_SlateCore!SOverlay::~SOverlay() UE4Editor_SlateCore!TIndirectArray<SBoxPanel::FSlot,FDefaultAllocator>::DestructAndFreeItems() [indirectarray.h:444] UE4Editor_SlateCore!SBoxPanel::~SBoxPanel() UE4Editor_SlateCore!FSimpleSlot::~FSimpleSlot() UE4Editor_SlateCore!SCompoundWidget::~SCompoundWidget() UE4Editor_SlateCore!FSlotBase::~FSlotBase() [slotbase.cpp:35] UE4Editor_Slate!TIndirectArray<SSplitter::FSlot,FDefaultAllocator>::DestructAndFreeItems() [indirectarray.h:445] UE4Editor_Slate!SSplitter::~SSplitter() UE4Editor_SlateCore!TIndirectArray<SOverlay::FOverlaySlot,FDefaultAllocator>::DestructAndFreeItems() [indirectarray.h:444] UE4Editor_SlateCore!SOverlay::~SOverlay() UE4Editor_SlateCore!FSimpleSlot::~FSimpleSlot() UE4Editor_SlateCore!SCompoundWidget::~SCompoundWidget() UE4Editor_SlateCore!TIndirectArray<SBoxPanel::FSlot,FDefaultAllocator>::DestructAndFreeItems() [indirectarray.h:444] UE4Editor_SlateCore!SBoxPanel::~SBoxPanel() UE4Editor_SlateCore!TIndirectArray<SBoxPanel::FSlot,FDefaultAllocator>::DestructAndFreeItems() [indirectarray.h:444] UE4Editor_SlateCore!SBoxPanel::~SBoxPanel() UE4Editor_SlateCore!TIndirectArray<SOverlay::FOverlaySlot,FDefaultAllocator>::DestructAndFreeItems() [indirectarray.h:444] UE4Editor_SlateCore!SOverlay::~SOverlay() UE4Editor_SlateCore!FSimpleSlot::~FSimpleSlot() UE4Editor_SlateCore!SCompoundWidget::~SCompoundWidget() UE4Editor_SlateRHIRenderer!FSlateRHIRenderer::DrawWindow_RenderThread() [slaterhirenderer.cpp:874] UE4Editor_SlateRHIRenderer!TGraphTask<TEnqueueUniqueRenderCommandType<`FSlateRHIRenderer::DrawWindows_Private'::`29'::SlateDrawWindowsCommandName,<lambda_43e86ee7c51f39979e9a39d40b280024> > >::ExecuteTask() [taskgraphinterfaces.h:784] UE4Editor_Core!FNamedTaskThread::ProcessTasksNamedThread() [taskgraph.cpp:651] UE4Editor_Core!FNamedTaskThread::ProcessTasksUntilQuit() [taskgraph.cpp:560] UE4Editor_RenderCore!RenderingThreadMain() [renderingthread.cpp:327] UE4Editor_RenderCore!FRenderingThread::Run() [renderingthread.cpp:461] UE4Editor_Core!FRunnableThreadWin::Run() [windowsrunnablethread.cpp:76]
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-51889 in the post.
| 0 |
| Component | UE - Editor - Workflow Systems |
|---|---|
| Affects Versions | 4.18 |
| Target Fix | 4.19 |
| Created | Nov 1, 2017 |
|---|---|
| Resolved | Nov 2, 2017 |
| Updated | Jan 20, 2024 |