Unreal Engine Issues

Control Rig - Undo doesn't function correctly with proxy and multi bone controls

Issue from my Technical Animator where the undo operation in Control Rig doesn't work as expected on Proxy Controls. He has recreated the issue using the "Control Rig Samples Pack" and recorded a vi ...

Snap to nearest spline point no longer working in 5.6. Right clicking on a spline point and using the option “Snap to nearest spline point" will no longer snap that point to any nearby spline and will sometimes cause the spline to snap to itself.

Context: When editing SplineComponents in the level viewport, right clicking a spline point has a context menu action "Snap to nearest spline point". Problem: The problem is, Snap to nearest spline ...

Child actor components fail to attach in cooked builds when mobility is set to movable and end up at the origin

Context: A Child Actor Component allows an actor in Unreal Engine to contain another actor as its child (component). Problem: The problem is inconsistent handling of child actor component mobility ...

Inconsistent Nanite raster bin debug visualisation colors

The raster bin debug colors are not always consistent when a static mesh and spline mesh are present ...

Material Instance Platform Stats don't update when Material Layer parameters are changed

The instruction count appears to update properly if the whole asset editor is closed and reopened. ...

User-defined InstancedStaticMeshComponent subclass misbehave in SCS Editor

Context Users can create InstancedStaticMeshComponent (ISMC) (blueprint) subclasses. Any ISMC class can be added to an actor blueprint. When a mesh is selected and transforms are added to the Insta ...

crash when rename a sequencer asset referenced by another sequence as shot track

Actors transforms broken in cooked builds when their parent is an IsEditorOnlyActor

When creating a hierarchy of Actors in the Outliner, the transform of the "child" actors will be reset if their Parent's IsEditorOnlyActor property is true.  The project in the EPS case is using ...

Values for InitialOnly replicated arrays can fail to be captured in replay when removed and re-added between checkpoints

When the first checkpoint is recorded, the correct array properties will be captured in the LifetimeChangelist. When these array items are later removed and another property on the actor is changed, ...

FNiagaraScalabilityManager incorrectly reactivates a NiagaraComponent that was deactivated by runtime user code

Context: The Niagara System is the primary tool to do visual effects inside Unreal. Niagara systems can be culled due to distance. Problem: Once a deactivated Niagara System is culled due to distan ...