Unreal Engine Issues

Object Columns using soft asset references will return null results

We have encounter an issue in the Chooser when we setup output object column for soft reference object ptr (an optional montage object). It is working correctly when the montage is loaded. But befor ...

Animation compression deadlock

The deadlock occurs when attempting to cancel compression during animation sequence destruction. The compression thread ends up deadlocking with the game thread, which is the one requesting the canc ...

Possible to duplicate shot tracks

Multiple shot tracks are a problem source, and UE seems to try and pre-empt them by disabling the menu option to add a second one when one is already in there. Duplication, however, is still permitt ...

Adding weights to bones doesn't properly update skeltree

DynamicMaterialParameters Niagara module resets write flags on emitter update

When using the DynamicMaterialParameters Niagara module in UE 5.6, 5.7, and UE5-Main (CL 50298778), updating an emitter causes Boolean values, such as Index0Float0Write, to reset to default values, ...

Mover | FStanceModifier adjustment teleport on Crouch/Uncrouch can fail when child components intersect world

Context When crouching and uncrouching with Mover’s DefaultMovementSet, the pawn capsule’s half height is changed. This behavior mimics the CharacterMovementComponent. To ensure the pawn’s feet sta ...

Mass entities initializing fragments on the incorrect archetypes due to shared CreationContext

UMassAgentSubsystem::HandlePendingInitialization creates a single FEntityCreationContext that is reused across all iterations of the PendingAgentEntities loop. When SpawnEntities eventually calls in ...

Tooltips not appearing in Editor when hovering over assets due to Slate Cursor Move settings

User noticed that when Slate.EnableSyntheticCursorMoves is set to false the editor UI tooltips no longer display. As noted by the user, modifying Slate.CursorSignificantMoveDetectionThreshold to at ...

Material Functions are incorrectly listed in the Layer Asset list

Since UE 5.7, Material Functions are included in the Layer Asset list of the Material Layers of an instanced material using material layers. It is also possible to drag and drop Material Functions ...

“S” key fails to add key to transform when additive track Is locked

When an additive transform track is locked, pressing the “S” key does not add a new key to the sequence. No key is added to either the additive track or the base transform track. What the user expe ...