Unreal Engine Issues

Custom fallback mesh LODs for Nanite-enabled meshes not working

Creating a custom fallback mesh with LOD for Nanite-enabled meshes with multiple materials, results in mesh LODs with errors. As the number of material sections (material slots) decreases with coars ...

Custom Primitive Data is not affected in the skeletal mesh on BP instances in the editor

Editing Custom Primitive Data values ​​in the details panel of a placed BP actor with a Skeletal Mesh component does not reflect in the Editor viewport. ...

ExportMaterialProperty doesn't output any FColor data from noise expression node

FMaterialUtilities::ExportMaterialProperty doesn't take into account any noise expression nodes in the material when outputting the FColor array. ...

Draw debug points do not draw at the same sizes in Orthographic viewports as they do in Perspective viewports

With the Draw debug points node, the points do not draw at the same sizes in Orthographic viewports as they do in Perspective viewports. This issue does not appear to be a regression. Versions Test ...

Some fractured meshes do not retain their original normals after fracture

Fractured meshes with weird Normals/Reflections. You will see weird normals / reflections on the surface, seems each fracture piece has it's own reflection angle. Repro rate: 3/3 Tested this in // ...

The layer option for grid panels do not appear to be having an effect on draw order

It appears that users are unable to order widgets within a grid panel so as to set what widget that would like to be in the front. The layer option in the details panel says that it affects draw ord ...

Pose flickering when changing lods and using Layered Blend per Bone

Wild card pins do not update when other pins on the same node have been used

Wild card pins do not update when other pins on the same node have been used. If the other pin on the inputs node is connected, the other wildcard pin(s) will no longer update back to wildcards if ...

FBX material IDs from 3DS Max are reordered in automatic LOD generation

This appears to be a UE4 bug in the way it handles the importing of FBX Material IDs from 3DS Max exports.Max uses set Mat IDs to organize multiple materials on a single object.UE4 correctly handles t ...

Crash: Landscape Materials Missing on Shipping and Development Packaged Builds

When running a packaged build of a project with a level with a landscape that has a material assigned it will crash (shipping build) or not retain the assigned material (development build). There i ...