Originally posted by MeaNGremmy:

Have to say I've never come across this personally. It does seem very much like a bug, or possibly some sort of rendering problem where light effects are left unrendered for some reason.

Does it happen on both vulkan and dx rendering?

ooh ACE question, i was on the Vulkan version.
Thanks for bringing that up it had completely slipped my mind, i will add that to my testing tomorrow!!!