The light in the Blueprint Editor's Preview Scene does not respond to any lighting channel but 0.

UE - Gameplay - Blueprint Editor - Jun 28, 2024

In 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 ...

Make ConfigBranch creation thread safe

UE - Platform - Jun 28, 2024

See [Link Removed] for details ...

README files for Mover and Network Prediction are missing from distributed UE builds

UE - Gameplay - Network Prediction - Jun 27, 2024

The 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, 2024

Geometry 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, 2024

USkeletalMeshComponent::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 ...

Imposter renders incorrectly in PCG volume after updating to 5.4

UE - World Creation - Procedural Tools - PCG Component - Jun 27, 2024

The last level of impostors in PCG volumes render incorrectly after updating from 5.3 to 5.4. ...

HLODs generate incorrectly with Substrate enabled

UE - World Creation - Worldbuilding Tools - HLOD - Jun 26, 2024

Happens when using multiple layers:"Testing this further it appears that it only occurs with multiple HLOD layers. The default setup has an instanced HLOD with a merged mesh HLOD parent. If you remo ...

Cloth Asset - Cloth bounces off wildly during the rendering of a sequence in MRQ.

UE - Simulation - Physics - Character - Jun 26, 2024

The 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 ...

Moving a mesh with complex-as-simple collision clears overlaps previously detected by moving collision components

UE - Simulation - Physics - Solver - Jun 26, 2024

Consider a static mesh set to use complex-as-simple collision, and a convex collision component, starting to overlap each other. When only the Collision Component moves, its collision with the stat ...

pose search cook determinism issue

UE - Anim - Gameplay - Jun 26, 2024