is there some kind of limit on the 3d lights? if i have 10 lights sometimes 13, with shadows turned on it makes everything in the layer vanish, so if i have all my props on "base layer" and i add the lights to base layer , then the entire layer becomes invisible until i turn off the shadows on at least 1 light , makeing it less than 10 lights with shadows, it seems 10 or 13 seems to be a max on 3d lights