So I've been trying to compile a map that had been working fine all day. Then out of nowhere, I get the "Map with no textures" error. First thing I did was check the compile log and I spotted this: Code: ValidateLump: old version for lump 7 in map! What is this? I googled the error, but not really any luck there. I've searched here too and came up with nothing. Does anyone know what that is and what do I do about it?