ControlRig & Sequencer: FindControlRigs returns rigs even if their track have been removed

UE - Anim - Rigging - Jun 5, 2024

Constraint Actor to Rig with Editor Utility Widget is working for the first time adding to the Sequencer. However if it was deleted and added to Sequencer again, run Scripted Actor Action shows Err ...

Case Child Actor Component validation error when set as editor-only

UE - Framework - Components - Jun 4, 2024

When a blueprint actor with a child actor component is placed in a level, and the child actor component is set as editor-only, the output log will show a validation error when the actor is moved and ...

SpringArmComponent with "Use Camera Lag Substepping" does not handle fluctuating frame rates correctly

UE - Gameplay - Jun 4, 2024

The description of SpringArmComponent's "Use Camera Lag Substepping" option says "sub-step camera damping so that it handles fluctuating frame rates well". However, as noted and explained by a licen ...

Displacement + TAA causes "vibrating"/"buzzing" artifacts

UE - Rendering Architecture - Jun 4, 2024

There is a buzzing artifact on shadows that is seen in the provided test project. The problem seems to be far more subtle when VSM is turned off. Licensee mentions that turning r.Velocity.ForceOutpu ...

Datasmith Direct Link models relocate on sync

TM - Interoperability - Jun 3, 2024

Reported by multiple users. Models imported through Datasmith Direct Link can be relocated after a sync, despite no edits to the geometry's location in the DCC program. Currently reported for both ...

Strange results with HeightToNormalSmooth on Nanite meshes

UE - Rendering Architecture - Jun 3, 2024

This appears to also occur on meshes that aren't set to Enable Nanite at all.  [Image Removed] ...

Lumen reflection distortion

UE - Graphics Features - Lumen - May 30, 2024

Lumen reflections appear distorted depending on the camera orientation. ...

Queued AnimNotifies skipped on Server via CharacterMovement.

From a licensee: The issue is that under certain edge conditions I am experiencing Anim Notifies not being executed on our Dedicated Server ( it is an off case, so they typically do work, there a ...

Crash when exiting editor before EditorUtilityTask completes

UE - Editor - UI Systems - May 29, 2024

If exiting the editor before the EditorUtilityTask completes, it crashes. It will not crash if canceling the UtilityTask and then exit the editor. The following implementation does not allow destruc ...