I could go into explaining it, but this screenshot speaks 2000 words. About 100 units at the base of the map is in constant shadow. There's no leak, no pointfile, the compile log checker says nothing is wrong...No block light brushes or anything like that. Nothing I can find is causing the shadows (No its not the huge rock walls). It was working fine until I changed the map shape from a big box to a a bit sticking out. I've changed it back but its still being odd. Anyone seen anything like this before?