Unreal Engine Issues

IsSpatiallyLoaded = false set in actor blueprint is not respected in standalone game

In 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

Custom buffer visualization material instance problem

Material 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

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)

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

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 ...

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

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 ...

pose search cook determinism issue

In class UCancellableAsyncAction, methods IsRegistered() and ShouldBroadcastDelegates() still return true after Cancel() or SetReadyToDestroy() unregisters the object.

Class UBlueprintAsyncActionBase provides methods RegisterWithGameInstance() and SetReadyToDestroy(), which respectively register and unregister the object with the game instance. Derived class UCanc ...

Bug in StringTemplate.cpp related to modulo operator in MaterialTemplate.ush (code fix provided)

Shader Template files like MaterialTemplate.ush do not submit previous chunks when encountering a `%` character, unless that `%` character is `%s` or `% {...} `. Because the error is happening ...