Unreal Engine Issues

Animations do not play correctly when scrubbing at high speed while in Keep State.

If you check the attached GIF, you will see that when you jump the playback position, the animation stays in the same state as before the jump. I suspect this is a specification, but the user is req ...

Oculus Quest Link with OpenXR fires action events multiple times when multiple action events are bound to the same key

From a developer: If the same key is mapped to N action events all the mapped events fire N times. This issue only exists with the OpenXR plugin enabled and does not occur for any keyboard/mouse i ...

ISequencer::OnPlayEvent does NOT fire at the end of playback in Sequencer editor

ISequencer :: OnStopEvent is executed when pause, but not when playing to the last frame and stopping automatically. This is because OnStopDelegate.Broadcast(); is only in FSequencer::Pause(). When ...

Editor-only blueprints like WidgetBlueprint are not added to cooked asset registry class hierarchy

Both the Asset Registry and Asset Manager look for all subclasses of UBlueprintCore and use that to search for blueprint classes and construct an inheritance hierarchy. This always works in editor b ...

There is no indication that CreateDefaultSubobject will not work from within a Component/Nested subobject

We should at least update the comments on the CreateDefaultSubobject function warning people about the troubles and weird behavior that could occur when you call it from within a nested subobject  ...

New Viewport Resolution setting increases every time a new PIE window is launched

When closing a PIE viewport, we write the size back to the New Viewport Resolution setting in case the window was resized during play. However, we do not account for the window border, and write bac ...

NiagaraEditor timeline folders are not saved correctly

It works correctly in 5.0.3. ...

Multi-process cooking does not complete in UE5.3.0

Projects with multi-process cooking enabled will not complete packaging. If MPCook is disabled, packaging can be completed.  ...

iOS Quick Launch from the Editor no longer starts the app on device

For some reason, iOS apps no longer launch on device when using QuickLaunch within the Editor.  Instead, it does install the app onto the device, but when it attempts to then launch the app, a messa ...

Shadows get attenuated by Volumetric Fog excessively on mobile