Unreal Engine Issues
Unreal Engine Issues
[Mac][Metal] (Shadow) Rendering artifacts with 4.11 on Mac.
UE - Platform - Apple - Apr 12, 2016The first problem noted in this Answerhub post: First one is that static shadows from stationary directional light are completely broken. Screenspace buffer that should contain static shadows is ju ...
CoreSymbolication.framework fails to load on macOS 11 Big Sur
UE - Platform - Apple - Aug 20, 2020CoreSymbolication.framework has moved, likely into the system library cache. The function, FApplePlatformSymbolication::EnableCoreSymbolication probably needs to be updated in order to accommodate.d ...
Ray traced shadow sample settings greater than 1 cause shadow artifacts
UE - Graphics Features - Lumen - Sep 23, 2020Alternative you can follow these steps to reproduce 1. Create a new project with ray tracing enabled 2. Activate the groom plugins 3. Import a groom asset into the scene 4. Add any light type to the ...
GeometryCollectionComponent visibility flag is forced to true in BeginPlay
UE - Simulation - Physics - Destruction - Jan 26, 2023The visibility flag is reset to true in UGeometryCollectionComponent::UnregisterFromISMPool. This function is called from BeginPlay. Only when ISMPoolActor is not being used, the following worka ...
Components attached via AttachToComponent do not animate correctly when recorded by sequencer
UE - Anim - Sequencer - May 25, 2016When an actor is attached by the root to a bone of a skeletal mesh through the use of the "AttachToComponent" function in code, it will not follow animations when being recorded by the Sequencer Rec ...
Custom Component Being Added to Wrong Target Blueprint
UE - Gameplay - Components - Nov 2, 2015When attempting to add a custom component to a blueprint at runtime using the Add Component function, if you give the component an exposed variable, it will ignore whatever target you specify and ad ...
Unable to bind events to OnPerceptionUpdated in Blueprints
UE - Gameplay - Blueprint - Dec 18, 2017Attempting to bind an event to OnPerceptionUpdated results in an error in Blueprints. It seems that this is caused by the TArray in the function signature not being a constant reference. Current co ...
UMovieSceneTrackInstance::GetWorld() does NOT work properly in Editor
UE - Anim - Sequencer - Mar 28, 2023UMovieSceneTrackInstance::GetWorld() returns nullptr on Editor, so user can't use any function using WorldContext and Subsystem. The following code change may fix this issue UWorld* UMovieSceneTra ...
Crossfade sharing doesn't allow more than one shared transition
OLD - Anim - Apr 29, 2016Looking at the propagate function:void UAnimStateTransitionNode::PropagateCrossfadeSettings() { UEdGraph* CurrentGraph = GetGraph(); for (int32 idx = 0; idx < CurrentGraph->Nodes.Num(); idx++) ...
Crash Occurs When Using Invalid HideCategories
UE - Gameplay - Blueprint - Aug 8, 2016The licensee is experiencing a crash when using UCLASS(HideCategories = (Activation, LOD, Collision, Rendering, TextureStreaming, Lighting, Mobile, Transform, Physics, Tags)) This crash occurs afte ...