Unreal Engine Issues

Widget defaults not updated when modified on a base widget class via the hierarchy

A licensee has reported an inconsistency in how modified base widget class defaults are propagated to children. When modified via the UMG Designer Graph's Class Defaults, derived classes will be mar ...

Dropped encryption ack control message can result in connection failure

When connecting a client using encryption, the server's NetConnection sends the encryption ack and then immediately enables encryption (UNetConnection::EnableEncryptionServer). In the case where the ...

Legacy Input mappings and Gameplay Debug Mappings cannot "consume" Enhanced Input actions

Actor corruption due to Hierarchy broken after load

We recently hit a situation where some actors would suddenly teleport across the map when they were modified in the editor. We figured out that the AttachParent of some actors got reset on editor l ...

PIE Map and TSet Properties using TSoftObjectPtr Failing from Missing Rehash

There is an issue with PIE where sometimes TMap and TSet properties using TSoftObjectPtr or FSoftObjectPath values as keys don't work correctly. Items which are in the container aren't found despite ...

iOS ReplayKit isn't working in UE5.1+

In 4.27 & 5.0 when you press the in-app screen recorder button it would pop-up a msg about the user giving permission to allow the screen recording and then would start the recorder and save the mov ...

Pending Abilities are always Added then Removed (thus ordering is not preserved)

We should probably keep a Queue of the Gameplay Abilities Add/Removed rather than two separate lists.  That way we can get the ordering right.  I suspect there are lots of ordering issues if we look ...

Toggle Folder Visibility Inconsistent in Scene Outliner With Search

In the scene outliner, if you add a folder with one visible actor in it, and filter out some of the actors, users are unable to toggle the visibility of the folder anymore, or they are only able to ...

WaterInfoTexture doesn't automatically update when new landscape mips stream in

Occasionally in a cooked game, the water info texture will be rendered before the necessary landscape heightmap mips are streamed in, leading to a blocky texture. Due to the lack of a callback syste ...

Editor Freezes after the user attempts to set a NewSpriteAtlasGroup to an imported sprite

By setting an Atlas Group to a newly created sprite, the editor freezes. This feature is most important, even if this issue can only be reproduced by a minority of users. Repro rate: 5/5 Notes:No ...