Why Do Assets Turn Black After Building Lighting?

When I build lighting only in my levels, certain assets turn black. Sometimes it is only specific portions of an asset. Does anyone know why this happens?

I think I fixed it, the direct light was set to moveable. After changing it to static, it now looks like it does before building. If anyone has any other information on this issue, please let me know!

Hi there @User-31e3dcabf2,

This is usually due to bad lightmaps. Try increasing the lightmap resolution for meshes where this happens, and if that doesn’t work you may want to make your own lightmaps instead of using Unreal’s autogenerated UVs.

This Epic page contains the documentation on Lightmaps in Unreal if you want to learn more about what is happening and why.