Unreal Engine Issues

SkyLight is not affecting the volumetric fog

Looks like this behavior was working as expected until 5.1 Preview 2 ...

Nanite Meshes appear to glow with Skylight stationary mobility

[Image Removed][Image Removed] ...

Lumen generates gradated shading even if the light is a constant color sky light

Lumen generates a gradated shading even if objects are lit by a 360-degree constant sky light.[Link Removed][Link Removed] I looked into this and found that this comes from Spherical Harmonics int ...

Lumen appears to ignore custom World Origin Location

Lumen doesn't update when the World Origin Location is changed. ...

Complex morph target motion vectors flicker

Morphing target flickers when switching between complex targets. This occurs when global illumination is set to Lumen. Per talk with analyst, it greatly improves when using SSR or None instead of Lu ...

"FVector contains NaN" on packaged builds for Debug configuration

Customer Provided Description:This was experienced in UE 5.01 - custom installed engine (No changes to UE code, simply added the Debug build configuration, see the following command): "c:%ue_dire ...

Roughness map detail is lost in shadowed areas with Lumen enabled

Artifact when rendering high-resolution images with Lumen and Movie Render Queue

Artifacts when using Lumen at 8K equivalent resolution and rendering with MRQ. 8K equivalent, because the same issue occurs when the resolution is set to 4K and the Screen Percentage is set to 200. ...

Final Gather Quality Post Process setting causes severe rendering issues in the Stack-O-Bot project

When opening the Stack-O-Bot project in 5.0 Preview 1, the project has a rendering issue where bright shimmering lights appear all around the screen. I discovered that this is due to the PostProcess ...

Editor lighting components not displaying correctly with diffuse off with lumen enabled

Licensee note: "I haven’t tested with Ray tracing. I currently have lumen enable and it’s occurring there." ...