Unreal Engine Issues

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 ...

Allow extending World Partition streaming partition class

Editor becomes unresponsive/freezes when a Geometry Collection is destroyed by a Hit Event while simulating

This is a regression. Tested in //UE5/Release-5.1 CL23901901 When a geometry collection is destroyed by an On Hit event the editor becomes unresponsive and never recovers. No crash is generated. ...

Lumen tile classification flicker

While we suggest using screenpercentage at 25%, it is visible at higher percentages. Video showing the flickering:https://udn.unrealengine.com/s/contentdocument/0694z00000Qw4jPAAR ...

TSR: Implement adapative sharpening in the TSRResolveHistory.usf based of the number of pixel accumulated in history

Assert during HLOD Mesh Build with Degenerate Triangles in a Mirrored Mesh Instance

Licensee reports an issue with MeshDescription indexing when reversing a degenerate triangle. ...

MaterialBaking LocalSpace Issue

See attached project for a good repro ...

ReversedDepthOnlyIndexBuffer exported even when bEnableDepthOnlyIndexBuffer is false

ReversedDepthOnlyIndexBuffer is exported even when bEnableDepthOnlyIndexBuffer is false. It's likely an error and line 568 in StaticMesh.cpp should rather be ://if (!bEnableReversedIndexBuffer) <= ...