Packaging fails with too many instanced static meshes

UE - Graphics Features - Jun 8, 2018

Project will fail to package with more than one actor containing ISM Components. From user: "...After some testing I found that it only occurs if there are multiple actors in a map (either of the ...

Motion Controller Components Don't Track Motion Controllers

UE - Platform - XR - Jan 17, 2020

The motion controller component doesn't track motion controllers correctly. This worked in 4.23. If you create a VR template project and follow the repro steps this issue doesn't occur. This was t ...

Weird reflection pixels of translucent objects with Ray Tracing Reflection

UE - Graphics Features - Lumen - Jul 15, 2020

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Realtime Rendering toggle disabled after using Cloth Painting

UE - Simulation - Physics - Character - Jul 29, 2021

After finishing cloth painting, the ability to toggle Realtime Rendering in the viewport is greyed out. Additionally, the Disable Realtime Override button doesn't seem to have any effect. This probl ...

Pixel Inspector does not display Gbuffer values properly when a mesh with a material that has Anisotropy set is in Level

UE - Graphics Features - Jan 16, 2024

This issue occurs when there is a material with Anisotropy, like the attached GIF.[Image Removed] ...

Custom buffer visualization material instance problem

UE - Rendering Architecture - Materials - Jun 28, 2024

Material Instances used in Custom Buffer Visualizations do not respect parameter overrides, and use the parent material's values. Also tested on UE5-Main, CL: 34543023 ...

Landscape Layer Painting issues when painting near the edge of delete Landscape Proxies.

UE - Graphics Tools - Terrain - Jul 19, 2024

It appears that the landscape painting tool is not correctly taking into account deleted landscape sections, resulting in artifacts inside of the weight textures. ...

'prefix parameter names' checkbox in a material function's settings does nothing.

UE - Rendering Architecture - Materials - Nov 14, 2024

Prefix Parameter Names checkbox does not work as expected, and the Group names are unmodified. The value "UMaterialFunction::bPrefixParameterNames" does not appear to be used anywhere in the Engine ...