For my first Source map, I tried converting one of my CS maps to CS:S. The .map loaded fine, I set up the entities correctly (as far as I can tell), the map runs and everything works. However, all brush entities (apart from func_detail) are unlit. Pitch black. Interestingly, with entities that use fullbright textures, they are black unless you shine the flashlight on them, if they get even the slightest amount of light from the flashlight they go fullbright. I'm using custom textures for most if not all of the entities, however this probably isnt the problem since the same textures work on world brushes.

My map uses only texture and environment lighting. Someone suggested I put a light entitiy in the map, I tried that and it had no effect. Has anyone else had this problem, or anything like it?