Unreal Engine Issues

Odd behavior in Lyra when a key is down and focus is received back on the player from UI with gamepad buttons

This is only happening with gamepad buttons it appears. This is likely not Lyra specific, but has something to do with how the state of gamepad keys are being evaluated. I think that it may be becau ...

Object may not be able to go dormant with PushModelSkipUndirtiedReplication enabled

In ReadyForDormancy, we check if the replicator has any change lists or property updates that haven't been acked. However, these checks are not made in CanSkipUpdate, which can result in the object ...

The ActionInstanceData event is incorrect when triggering a "Started" delegate which is on the same tick as a "Triggered" event

This is happening because the FInputActionInstance has the event as "triggered" when the triggered event and started event occur on the same frame. This is correct, but when the delegate gets fired ...

Media Plate Actor becomes blacked out when set to Spawnable in a Level Sequencer

saving a media plate actor set to spawnable in a level sequence causes the media plate actor to become black. there are two known workarounds 1. toggling the Media plate to Possessable, and Spawnabl ...

Input Trashing after changing from UI Only Input mode to Game only input mode

Animation panel does not save docking location after being moved

Mesh decals do not display on packed level actors

Subobjects can change sorting order in Blueprint Subobject Editor

Subobject sorting is not stable in the Subobject editor, so the UX is bad if you are creating complex hierarchies because it's difficult to keep track of newly added or reordered components. ...

Crash when Copy/Pasting from Older UE Versions

When copy/pasting scene objects from older Unreal versions into Unreal 5.1, the editor will crash. ...

Subobject pointer may be null when attempting to access a nested BP added property in a BP script or python

This is likely something going wrong in the Blueprint Editor utilities function calls or something like that. Obviously this works as expected in the Subobject Editor itself, otherwise no nested BP ...