Any idea what the heck is going on here? THe walls look great, the ceiling is a mess. No lights, just Self-Illum shader on the plane that is the lights (Emission at 10).
The baking is working great, except for this thing on the ceiling.
In my history of finding the solution as soon as I post the problem…
I had deleted some polygons on the tops of those lights to keep the poly count low, and that’s where the light leak was occuring.