Lighting for buildings and interiors is broken (pitch black)

[TonisGaming]

Describe the bug

Buildings and interiors are just pitch black, be it preplaced in a level or you place it yourself. Image attached to showcase issue

Steps to reproduce the issue

Either load up a map and look at a building/interior or spawn one in yourself

Log file

No response

Minimal reproduction

No response

[TonisGaming]

To be more exact, I think lighting just doesn't work in editor currently

[TonisGaming]

Custom units seem to be even more fucked than normal ones