Unreal Engine Issues
Unreal Engine Issues
Integer overflow in NaniteBuilder can lead to an editor crash on certain meshes
UE - Graphics Features - Nanite - Jul 10, 2024NaniteBuilder uses an int8 type for ExternalEdges and counts adjacency with a int32. The bug stems for the cast to int8 when adding the adjacency count into the ExternalEdges array. The precision l ...
PCG Graph callback fails after compiling blueprint
UE - World Creation - Procedural Tools - Jul 9, 2024PCG graph callbacks in BP do not appear to get called correctly after the blueprint is compiled. ...
Using Custom Primitive Data as Final Colour in a UI Material crashes the engine with a missing uniform buffer
UE - Rendering Architecture - Materials - Jul 3, 2024Using custom primitive data as an input in a UI material causes the engine to crash in the RHI thread. The exact crash is "Missing uniform buffer at slot 1, stage SF_Pixel." at Engine\Source\Runtime ...
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 ...
SkeletalMesh editor: Make static mesh mess the LOD 1 plus material slot
UE - Editor - Content Pipeline - Import and Export - Jun 28, 2024Custom 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 ...
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 ...
USkeletalMeshComponent::SkeletalMeshAsset modified value is lost when changing via level details panel
UE - Anim - Runtime - Jun 27, 2024USkeletalMeshComponent::SkeletalMeshAsset is transient so it seems that any modified value that is set via the level details panel on an existing actor is lost. We deal with this same problem for o ...
Cloth Asset - Cloth bounces off wildly during the rendering of a sequence in MRQ.
UE - Simulation - Physics - Character - Jun 26, 2024The motion blur rendering is causing some issues when rendering the cloth asset as the timestep wildly changes without the number of substeps being increased, The movie pipeline code needs to man ...