Unreal Engine Issues
Unreal Engine Issues
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 ...
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 ...
Landscape Import is per-region and does not calculate normals along the borders
UE - Graphics Tools - Terrain - Jul 31, 2024Seams are found after importing a tiled landscape. ...
Landscape Transparent with r.Lumen.DiffuseIndirect.Allow 0
UE - Graphics Tools - Terrain - Landscape - Jul 31, 2024HideBoneByName translates bone to parent which breaks skinning
UE - Anim - Jul 30, 2024Calling HideBoneByName on a bone causes that bone (and all it's children) to be translated to the parent bone's location. This code in UpdateRefToLocalMatricesInner is responsible: bool bNeedToHid ...
Cook Determinism - Construction Scripts and ChildActorComponent issues with DiffCooks
UE - Framework - Components - Jul 26, 2024To step through the issue, in the -DiffOnly cook add a breakpoint to UChildActorComponent::OnRegister and UChildActorComponent::OnUnregister. It should hit 4 times:Once when LoadPackage loads the ma ...
Chaos Cache : When Min Speed To Spawn Trailing Particles > 0, particles are never spawned by chaos cache trailing events
UE - Niagara - Data Interface - Jul 26, 2024Because UniagaradataInterfaceChaosDestruction::HandleTrailingEvents does not respect incoming TrailingEvent data, the debris velocity during chaos cache playback is always evaluated as zero. The fo ...
Removal of ReplacementSceneComponent leaves trashed components during WorldPartitionResaveActorsBuilder
UE - World Creation - Worldbuilding Tools - World Partition - Jul 25, 2024Running WorldPartitionResaveActors builder can detach attached actors. ...