This crash has started occurring in 4.15.2. It seems to be a regression from 4.15.1.
Reproduced internally (2/10 times) using 382.05 driver:
Result:
Crash
Access violation - code c0000005 (first/second chance not available) UE4Editor_Core!FName::ToString() [unrealnames.cpp:901] UE4Editor_Engine!TEnqueueUniqueRenderCommandType<`UKismetRenderingLibrary::DrawMaterialToRenderTarget'::`12'::BeginDrawEventCommandName,<lambda_006f723da97008118d513539c16ed84f> >::DoTask() [renderingthread.h:190] UE4Editor_Engine!TGraphTask<TEnqueueUniqueRenderCommandType<`UKismetRenderingLibrary::DrawMaterialToRenderTarget'::`12'::BeginDrawEventCommandName,<lambda_006f723da97008118d513539c16ed84f> > >::ExecuteTask() [taskgraphinterfaces.h:883] UE4Editor_Core!FNamedTaskThread::ProcessTasksNamedThread() [taskgraph.cpp:954] UE4Editor_Core!FNamedTaskThread::ProcessTasksUntilQuit() [taskgraph.cpp:701] UE4Editor_RenderCore!RenderingThreadMain() [renderingthread.cpp:325] UE4Editor_RenderCore!FRenderingThread::Run() [renderingthread.cpp:459] UE4Editor_Core!FRunnableThreadWin::Run() [windowsrunnablethread.cpp:76]
*Local Callstack*
Assertion failed: IsValidIndex(Index) && ChunkIndex < NumChunks && Index < MaxTotalElements [File:D:\Build\++UE4+Release-4.15+Compile\Sync\Engine\Source\Runtime\Core\Public\UObject/NameTypes.h] [Line: 354] UE4Editor_Core!FDebug::AssertFailed() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\private\misc\assertionmacros.cpp:349] UE4Editor_Core!FName::GetDisplayNameEntry() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\private\uobject\unrealnames.cpp:895] UE4Editor_Core!FName::ToString() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\private\uobject\unrealnames.cpp:901] UE4Editor_Engine!TEnqueueUniqueRenderCommandType<`UKismetRenderingLibrary::DrawMaterialToRenderTarget'::`12'::BeginDrawEventCommandName,<lambda_006f723da97008118d513539c16ed84f> >::DoTask() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\rendercore\public\renderingthread.h:190] UE4Editor_Engine!TGraphTask<TEnqueueUniqueRenderCommandType<`UKismetRenderingLibrary::DrawMaterialToRenderTarget'::`12'::BeginDrawEventCommandName,<lambda_006f723da97008118d513539c16ed84f> > >::ExecuteTask() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\public\async\taskgraphinterfaces.h:883] UE4Editor_Core!FNamedTaskThread::ProcessTasksNamedThread() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\private\async\taskgraph.cpp:954] UE4Editor_Core!FNamedTaskThread::ProcessTasksUntilQuit() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\private\async\taskgraph.cpp:701] UE4Editor_RenderCore!RenderingThreadMain() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\rendercore\private\renderingthread.cpp:325] UE4Editor_RenderCore!FRenderingThread::Run() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\rendercore\private\renderingthread.cpp:459] UE4Editor_Core!FRunnableThreadWin::Run() [d:\build\++ue4+release-4.15+compile\sync\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:76]
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Head over to the existing Questions & Answers thread and let us know what's up.
| 0 |
| Component | UE - Graphics Features |
|---|---|
| Affects Versions | 4.15.2 |
| Target Fix | 4.15.3 |
| Created | May 19, 2017 |
|---|---|
| Resolved | May 19, 2017 |
| Updated | May 22, 2017 |