Unreal Engine Issues and Bug Tracker (UE-47522)

Description

This is a common crash affecting users in 4.16.

User Descriptions

removing Inventory system form level.
delete assets when was compiling shaders
Deleting folder
Deleting folder.

Source Context

 810       #if WITH_EDITOR
  811       	TArray<FAsyncDistanceFieldTask*> LocalCompletedTasks;
  812       	CompletedTasks.PopAll(LocalCompletedTasks);
  813       
  814       	for (int TaskIndex = 0; TaskIndex < LocalCompletedTasks.Num(); TaskIndex++)
  815       	{
  816       		// We want to count each resource built from a DDC miss, so count each iteration of the loop separately.
  817       		COOK_STAT(auto Timer = DistanceFieldCookStats::UsageStats.TimeSyncWork());
  818       		FAsyncDistanceFieldTask* Task = LocalCompletedTasks[TaskIndex];
  819       
  820       		ReferencedTasks.Remove(Task);
  821       
  822       		Task->GeneratedVolumeData->VolumeTexture.Initialize(Task->StaticMesh);
  823 ***** 		FDistanceFieldVolumeData* OldVolumeData = Task->StaticMesh->RenderData->LODResources[0].DistanceFieldData;
  824       
  825       		{
  826       			// Cause all components using this static mesh to get re-registered, which will recreate their proxies and primitive uniform buffers
  827       			FStaticMeshComponentRecreateRenderStateContext RecreateRenderStateContext(Task->StaticMesh, false);
  828       
  829       			// Assign the new volume data
  830       			Task->StaticMesh->RenderData->LODResources[0].DistanceFieldData = Task->GeneratedVolumeData;
  831       		}

Steps to Reproduce

repro steps currently unknown

Callstack

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

UE4Editor_Engine!FDistanceFieldAsyncQueue::ProcessAsyncTasks() [distancefieldatlas.cpp:824]
UE4Editor_Engine!FDistanceFieldAsyncQueue::BlockUntilBuildComplete() [distancefieldatlas.cpp:741]
UE4Editor_Engine!UStaticMesh::CacheDerivedData() [staticmesh.cpp:2183]
UE4Editor_Engine!UStaticMesh::Build() [staticmeshbuild.cpp:105]
UE4Editor_Engine!UStaticMesh::PostEditChangeProperty() [staticmesh.cpp:1790]
UE4Editor_UnrealEd!ObjectTools::ForceReplaceReferences() [objecttools.cpp:774]
UE4Editor_UnrealEd!ObjectTools::ForceDeleteObjects() [objecttools.cpp:2295]
UE4Editor_UnrealEd!FAssetDeleteModel::DoForceDelete() [assetdeletemodel.cpp:316]
UE4Editor_UnrealEd!SDeleteAssetsDialog::ForceDelete() [sdeleteassetsdialog.cpp:717]
UE4Editor_UnrealEd!TMemberFunctionCaller<SDeleteAssetsDialog,FReply() [delegateinstanceinterface.h:165]
UE4Editor_UnrealEd!UE4Tuple_Private::TTupleImpl<TIntegerSequence<unsigned int> >::ApplyAfter<TMemberFunctionCaller<SDeleteAssetsDialog,FReply() [tuple.h:497]
UE4Editor_UnrealEd!TBaseSPMethodDelegateInstance<0,SDeleteAssetsDialog,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!FWindowsApplication::PumpMessages() [windowsapplication.cpp:2139]
UE4Editor_Slate!FSlateApplication::TickPlatform() [slateapplication.cpp:1570]
UE4Editor_Slate!FSlateApplication::AddModalWindow() [slateapplication.cpp:2048]
UE4Editor_UnrealEd!UEditorEngine::EditorAddModalWindow() [editorengine.cpp:3820]
UE4Editor_UnrealEd!ObjectTools::DeleteObjects() [objecttools.cpp:1827]
UE4Editor_ContentBrowser!ContentBrowserUtils::DeleteFolders() [contentbrowserutils.cpp:581]
UE4Editor_ContentBrowser!FPathContextMenu::ExecuteDeleteFolderConfirmed() [pathcontextmenu.cpp:780]
UE4Editor_ContentBrowser!TMemberFunctionCaller<FPathContextMenu,FReply() [delegateinstanceinterface.h:165]
UE4Editor_ContentBrowser!UE4Tuple_Private::TTupleImpl<TIntegerSequence<unsigned int> >::ApplyAfter<TMemberFunctionCaller<FPathContextMenu,FReply() [tuple.h:497]
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,FPathContextMenu,0,FReply __cdecl() [delegateinstancesimpl.h:327]
UE4Editor_ContentBrowser!TBaseDelegate<FReply>::Execute() [delegatesignatureimpl.inl:537]
UE4Editor_ContentBrowser!SContentBrowserConfirmPopup::YesClicked() [contentbrowserutils.cpp:248]
UE4Editor_ContentBrowser!TMemberFunctionCaller<SContentBrowserConfirmPopup,FReply() [delegateinstanceinterface.h:165]
UE4Editor_ContentBrowser!UE4Tuple_Private::TTupleImpl<TIntegerSequence<unsigned int> >::ApplyAfter<TMemberFunctionCaller<SContentBrowserConfirmPopup,FReply() [tuple.h:497]
UE4Editor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SContentBrowserConfirmPopup,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

Component	UE - Graphics Features
Affects Versions	4.16
Target Fix	4.17

Fix Commit	3516977
Main Commit	3555226
Release Commit	3516977

Created	Jul 20, 2017
Resolved	Jul 21, 2017
Updated	Apr 27, 2018

View Jira Issue

UE-47522

[CrashReport] UE4Editor_Engine!FDistanceFieldAsyncQueue::ProcessAsyncTasks() [distancefieldatlas.cpp:824]

[CrashReport] UE4Editor_Engine!FDistanceFieldAsyncQueue::ProcessAsyncTasks() [distancefieldatlas.cpp:824]

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