June Chevalier

Hey, I’ve encountered a similar issue. But I may have found the culprit. I believe it’s a backface culling problem. I could be wrong but without culling the backface in Karma Render Settings node, lights would treat the backface as normal surface, which means it will not know which side of the surface is the inside and which side is outside. When I turned on backface culling, everything just works. I hope it helps.