Unreal Engine Issues

Significant editor slowdowns when moving blueprinted actors while having a different complex blueprint open

A Blueprinted actor's construction script time can be affected by the complexity of an opened level Blueprint. ...

Result pin of Cast Node of ControlRig can not break

In UE5.1, the Result pin of the ControlRig cast node could be broken, but it cannot be broken from UE5.2. ...

Simulate motion vectors can fail on camera cuts

r.MotionVectorSimulation 1 should simulate motion vectors when cutting cameras, but this appears to be broken on some loops. ...

Jump Animation for FPS template character breaks on land

When jumping in the first person template project, the "is in air" animation continues to play after landing. Solution: Switching out the "FirstPerson_JumpStart Asset" node for the "FirstPerson_J ...

FOV only Camera anim is not working as intended.

FOV-track-only camera anim do not give effect to current camera. if the anim have transform track without any key, the anim works. Regression? yes. This is not reproduced in 4.13.2 launcher version ...

Rect Light Texture does not unload during level streaming in packaged game

Enable Slate layout caching Will cause the Stop/Play Buttons to disappear

When using the command Slate.EnableLayoutCaching 1, The Play button is removed from the tool bar after exiting play. ...

Hair shading emits light when Lumen is enabled

This artifact does not occur when Lumen is disabled. Also, moving Roughness closer to 1 will reduce the effect. ...

Project crashes when exiting mobile preview

User project crashes when exiting from mobile preview. Frequency: 5/5 Crashreporter: [Link Removed] ...

Sequencer: Undoing creation of a new section can call section drawing code with viewmodel tree in invalid state

The Section reference in ISequencerSection::GetSectionHeight can be in the process of garbage collection during an undo of a section addition- this causes things like GetTypedOuter<UMovieSceneTrack> ...