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 ...

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. ...

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) <= ...

Cooking crash during shutdown with no useful error

Sometimes some of actors are destroyed after the destruction of the solver through the garbage collector. In this case, the app crash in FChaosScene::RemoveActorFromAccelerationStructureImp because ...

Stop using power of 2 RTs for landscape edit layers

Result : all the RTs allocated for edit layers (in global merge mode) will be padded to the next power of 2 for no good reason, which can lead to out-of-VRAM (as reported by [Link Removed]) ...