[CrashReport] Access violation in UE4Editor_Engine!FDistanceFieldAsyncQueue::ProcessAsyncTasks()

 562       {
  563       #if WITH_EDITOR
  564       	TArray<FAsyncDistanceFieldTask*> LocalCompletedTasks;
  565       	CompletedTasks.PopAll(LocalCompletedTasks);
  566       
  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];
  572       
  573       		ReferencedTasks.Remove(Task);
  574       
  575       		Task->GeneratedVolumeData->VolumeTexture.Initialize();
  576 ***** 		FDistanceFieldVolumeData* OldVolumeData = Task->StaticMesh->RenderData->LODResources[0].DistanceFieldData;
  577       
  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);