This report has been logged due to a high volume of submitted crash reports. Additional information is currently unknown.

User descriptions

  • Deleted 3 rocks from mesh folder and accepted to delete even if things may still be referenced in memory. This project is a copy loaded in 4.16 but was originally made in 4.12

Source Context

 562       {
  563       #if WITH_EDITOR
  564       	TArray<FAsyncDistanceFieldTask*> LocalCompletedTasks;
  565       	CompletedTasks.PopAll(LocalCompletedTasks);
  567       	for (int TaskIndex = 0; TaskIndex < LocalCompletedTasks.Num(); TaskIndex++)
  568       	{
  569       		// We want to count each resource built from a DDC miss, so count each iteration of the loop separately.
  570       		COOK_STAT(auto Timer = DistanceFieldCookStats::UsageStats.TimeSyncWork());
  571       		FAsyncDistanceFieldTask* Task = LocalCompletedTasks[TaskIndex];
  573       		ReferencedTasks.Remove(Task);
  575       		Task->GeneratedVolumeData->VolumeTexture.Initialize();
  576 ***** 		FDistanceFieldVolumeData* OldVolumeData = Task->StaticMesh->RenderData->LODResources[0].DistanceFieldData;
  578       		{
  579       			// Cause all components using this static mesh to get re-registered, which will recreate their proxies and primitive uniform buffers
  580       			FStaticMeshComponentRecreateRenderStateContext RecreateRenderStateContext(Task->StaticMesh, false);
Steps to Reproduce

In a project with GenerateMeshDistanceFields enabled (like QAGame)
Import a static mesh
While the distance field is building, delete the static mesh and choose 'Force Delete'
Editor will crash

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

UE4Editor_Engine!FDistanceFieldAsyncQueue::ProcessAsyncTasks() [distancefieldatlas.cpp:577]
UE4Editor!FEngineLoop::Tick() [launchengineloop.cpp:3040]
UE4Editor!GuardedMain() [launch.cpp:166]
UE4Editor!GuardedMainWrapper() [launchwindows.cpp:134]
UE4Editor!WinMain() [launchwindows.cpp:210]
UE4Editor!__scrt_common_main_seh() [exe_common.inl:264]

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ComponentUE - Graphics Features
Affects Versions4.154.16
Target Fix4.16.34.17
Fix Commit3516977
Main Commit3555226
Release Commit3541195
CreatedMay 31, 2017
ResolvedJun 29, 2017
UpdatedApr 27, 2018
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