Unreal Engine Issues

TSR & WPO - Distortion around mesh edges

The background around a mesh moving via WPO is distorted. Mesh is correctly outputting velocities. ...

When using a hierarchy of "FilterBar.json" Editor Config files, filters added in the Editor are saved in the Engine-level file, but filters removed in the Editor are not saved anywhere

The Editor Config system appears to support a hierarchy of JSON files (similarly to INI files) in three locations:Engine: "../../../Engine/Config/Editor"Project: "<PROJECT>/Config/Editor"User: "<APP ...

Landscape components not returning physical material with LineTrace in Editor mode

The OutHit from a LineTraceByChannel against a landscape in Editor is not returning the Physical Material of that landscape. While PIE there is no issue. While using BoxTrace (even in Editor) there ...

Crash Duplicating an empty AtlasRow material node

This isn't a hard crash, but a "verify(...)" from MaterialExpressions.cpp, line 559. ...

Lumen scene view - spot light cut off

This looks to be an issue with shadows in Lumen Direct Lighting, and might be coming from the "Batched lights" pass. ...

Shadow map z-fighting when using Overlay material

Blueprint Typing Potentially Incorrect when using Chooser Plugin

This appears to be some form of type confusion. In editor, the type of the result pin is a Packed Level Actor Class Reference, but at runtime, the returned value is a BlueprintGeneratedClass. ...

Groom shadows stay visible when component is hidden

This appears to happen with both Virtual Shadow Maps and Cascaded Shadow Maps. ...

Chaos Clothing CreateClothActor takes a long time with LODs and Self-Collision

Spawning an actor with Chaos cloth causes a hitch when LODs or Self-Collision are enabled on the cloth. LODs and Self-Collision seem to compound the issue. Self-Collision requires a collision simul ...

Disabling internal audio to use external audio system shows "Audio Device Manager Initialization Failed!" warning

In addition, we can find  "Main audio device could not be initialized. Please check the value for AudioDeviceModuleName and AudioMixerModuleName in [Platform]Engine.ini." log message in the engine. ...