Unreal Engine Issues
Unreal Engine Issues
Lightmaps are generated even if the ISM component's lightmap type is set to Force Volume
UE - Graphics Features - Jul 30, 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 ...
Lumen Reflections in Stereo are broken after Nvidia GPU Driver Update
UE - Platform - XR - Jul 29, 2024After updating the NVidia graphics driver to v.552.74+, reflective/mirror materials appear broken and render with black and white lines in VR mode if they are in a level with a Post Process Volume w ...
'Platform Stats' incorrectly display the number of Texture Calls for a material
UE - Rendering Architecture - Materials - Jul 29, 2024When the DBuffer is disabled in the project settings, the Material Editor Stat page will still display the estimated texture lookups for the DBuffer. It appears that the code that adds these estimat ...
Memory leak when Lumen is disabled but r.MeshCardRepresentation=1
UE - Graphics Features - Lumen - Jul 29, 2024When Lumen is disabled, but the cvar "r.MeshCardRepresentation" is set to 1, Lumen will continuously enqueue object removal from the Lumen Scene, without ever emptying the array of primitives to rem ...
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 ...
Removal of ReplacementSceneComponent leaves trashed components during WorldPartitionResaveActorsBuilder
UE - World Creation - Worldbuilding Tools - World Partition - Jul 25, 2024Running WorldPartitionResaveActors builder can detach attached actors. ...
Crash after generating HLODs for merged meshes that have all triangles culled
UE - World Creation - Worldbuilding Tools - HLOD - Jul 25, 2024Outliner freezes when searching in large maps
UE - Editor - Workflow Systems - Jul 24, 2024This is because SSceneOutliner::FullRefresh is called every time the search text changes, which repopulates the whole tree. There's a few options to look into here (first two might be tricky with b ...
In UE 5.4, some config variables are not getting saved correctly, due to the new User/Editor rules.
UE - Simulation - Visual - Jul 24, 2024A lot of properties are not getting saved correctly to custom configuration files. This looks like that it can be cause by the FConfigContext::PerformLoad function. New conditionals have been added ...