Unreal Engine Issues

Crash occur when using AddSpawnableFromClass with BlueprintGeneratedClass specified

BlueprintGeneratedClass is not based UBleupint. So the following code is failed. bool UActorFactoryBlueprint::PreSpawnActor( UObject* Asset, FTransform& InOutLocation) { UBlueprint* Blueprint = ...

Assert / crash resolving TSoftObjectPtr when exiting PIE

The main landscape actor's outer level's WorldSettings gets nullified by GC on PIE end, which leads to this problem. For some reason, this only seems to occur with the attached custom game mode : it ...

Unreal crashes with an Fatal Error: Out of memory message.

WP HLOD Crash on Small Cell Sizes

UBTTaskNode::ReceivedMessage crashing on memory-less BT nodes

Crash in when setting label in ChildActor (infinite loop in PECP)

In void ATestActor::OnConstruction(const FTransform& Transform) there is an infinite loop occuring in a ping pong call between the SetActorLabel and the DestroyChildActor calls. Happens in vanil ...

Editor Crashes When Updating Captures on Sphere Reflection Captures

Error message: Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 633] Array index out of bounds: -1 from an array of size 11 Source Context: 200 CubemapArray.Updat ...

Crash enabling Async Scene and opening level in editor

This is a regression from 4.14.3 at CL 3251583 ...

Niagara Crash : ExportParticleDataToBlueprint module causes buffer overrun

This buffer overrun is probably caused by the ExportParticleDataToBlueprint module does not respecting the GPUAllocation Fixed Size setting in the module. In fact, out-of-range export data is not c ...

Editor crashes on launch with Intel graphics on El Cap

Assertion failed: GMaxRHIFeatureLevel == ERHIFeatureLevel::SM5 [Link Removed] [Line: 39] Run with the following command line: EngineQAs-MacBook-Pro:~ engineqa-admin$ /Users/Shared/UnrealEngine/4.15 ...