Actor Coloration doesn't work with Unlit anymore?

You’re welcome. And I completely understand, I agree it was more convenient before. But since the engine devs seem to be working on this area of the editor (there were changes from 5.3 -> 5.4 -> 5.5 as mentioned), let’s hope it keeps getting improved.

Here’s the bug tracker link: UE-268725. It should become accessible once the devs mark is as public.

All the best,

Vitor