Unreal Engine Issues
Unreal Engine Issues
UE5.4 Regression - crash when disabling shader optimization while raytracing is enabled on D3D12
UE - Rendering Architecture - Shaders - Jul 15, 2024Certain interactions between a Rect Light with a Light Function and a Post-Process volume lead to a check() when compiling a Ray Tracing PSO for tracing lights. This check() only happens when shader ...
Niagara compiler error, branch in custom hlsl doesn't work properly
UE - Niagara - Scripting - Jul 15, 2024Material ParticleRandom node doesn't have proper value returned in specific case
UE - Niagara - Jul 14, 2024Flickering shadows/GI when DrawMaterialToRenderTarget is called per tick in PIE
UE - Rendering Architecture - Jul 11, 2024When DrawMaterialToRenderTarget function is called on tick and actors are spawned in game, the lumen shadow/GI visually flickers. Debugging shows that the lumen screen probes are flickering as well. ...
IsSpatiallyLoaded = false set in actor blueprint is not respected in standalone game
UE - World Creation - Worldbuilding Tools - World Partition - Jul 1, 2024In past compatibility detection in FWorldPartitionClassDescRegistry::PrefetchClassDescs, as AssetRegistry.TryGetAssetPackageData returns UE::AssetRegistry::EExists::Unknown in standalone games, so t ...
Custom buffer visualization material instance problem
UE - Rendering Architecture - Materials - Jun 28, 2024Material Instances used in Custom Buffer Visualizations do not respect parameter overrides, and use the parent material's values. Also tested on UE5-Main, CL: 34543023 ...
All public inline methods of class "FBlueprintEditor" are inaccessible to other modules due to "DLLIMPORT"
UE - Gameplay - Blueprint Editor - Jun 28, 2024Class "FBlueprintEditor" has several inline getter methods as part of its public API (e.g. GetPreviewActor() and GetPreviewScene()). However, even though they are public, those methods are inaccessi ...
The light in the Blueprint Editor's Preview Scene does not respond to any lighting channel but 0.
UE - Gameplay - Blueprint Editor - Jun 28, 2024In the Blueprint Editor, Primitive Components can be configured to respond to Lighting Channels 0, 1, and/or 2. However, if channel 0 is disabled (even with another one enabled), the Preview Actor's ...
README files for Mover and Network Prediction are missing from distributed UE builds
UE - Gameplay - Network Prediction - Jun 27, 2024The Network Prediction and Mover plugins both have readme files in their plugin's root, but these files are somehow filtered out during the process of assembling a distributed build. ...
Geometry Collections don't support any collision visualization modes (Collision, CollisionVisibility or CollisionPawn)
UE - Simulation - Physics - Jun 27, 2024Geometry collection objects do not display any collision visualization, either collision color or wireframe overlay when the view mode is set to Player Collision or Collision Visibility or when the ...