Unreal Engine Issues
Unreal Engine Issues
Lightmap UV generated on Windows and Mac is not deterministic
UE - Graphics Tools - Modeling Tools - Aug 7, 2024Screen Probes and Specular Firefly Flickering near screen edges
UE - Graphics Features - Lumen - Aug 6, 2024Lumen's rough specular indirect lighting buffer can have fireflies along the bottom and right edges of the screen. Also tested in //UE5/Main, CL: 35177423 ...
Crash when a subsystem calls GetSubsystemArray() on its owner while engine code is iterating on subsystems also obtained through GetSubsystemArray()
UE - Gameplay - Aug 6, 2024In some occasions, engine code iterates over a certain subsystem type by calling FSubsystemCollection::GetSubsystemArray() and then calling some method on all subsystems of the returned array. This ...
Pasting custom data floats from a text editor into a instanced static mesh component crashes the editor
UE - Framework - Components - Aug 5, 2024When an instanced static mesh component with a material using a PerInstanceCustomData node has its data floats pasted in, the editor crashes with an "Array index out of bounds" error. The licensee w ...
Issue with Landscape Layer Blending Node compile in UE 5.4.2
UE - Graphics Tools - Terrain - Aug 2, 2024When the SetMaterialAttributes Material Expression is used without an input to MaterialAttributes, it will cause Landscape Layer Blend expressions to fail to compile if it is the only layer on a par ...
Levels can get stuck in the 'loading' state when using Incremental GC
UE - World Creation - Worldbuilding Tools - Jul 31, 2024From licensee:"Testing incremental GC on our project we have ran into an issue with level streaming where levels will get stuck in the 'loading' state in packaged builds. The issue appears to be due ...
Client disconnect during seamless travel results in incorrect NumPlayers and NumTravellingPlayers
UE - Networking - Jul 31, 2024This issue seems to stem from HasClientLoadedCurrentWorld returning true in AGameMode::RemovePlayerControllerFromPlayerCount. When removing a player controller, the GameMode checks if a seamless tra ...
Foliage breaking when used Sublevels into a Persistent Level
UE - World Creation - Worldbuilding Tools - Foliage - Jul 31, 2024Duplicating an imported socket wrongly displays the duplicate as also imported
UE - Graphics Tools - Modeling Tools - Mesh Editing - Jul 31, 2024The duplication of an imported mesh wrongly marks it as also imported from the source mesh. The probable cause is data duplication without taking this edge case into account. I suggest checking Unr ...