Hmmm... you got lots of stuff going on outside the map, in the void. Triggers and infotargets, in short, entities are outside the map. This is not good.
I prefer to wait for other ppls opinions about it, since I'm not the best person to give advice, but I find it hard to belive that you compiled the map without leaks. And this may be your problem here.
I also got this in from VBSP in the log:
KeyValues Error: RecursiveLoadFromBuffer: got EOF instead of keyname in file materials/MODELS/PROPS_LAB/TANK_GLASS001_DX60.vmt
UnlitTwoTexture, (*Proxies*), (*AnimatedTexture*),
KeyValues Error: RecursiveLoadFromBuffer: got EOF instead of keyname in file materials/MODELS/PROPS_LAB/TANK_GLASS001_DX60.vmt
UnlitTwoTexture, (*Proxies*), (*AnimatedTexture*),
KeyValues Error: RecursiveLoadFromBuffer: got EOF instead of keyname in file materials/MODELS/PROPS_LAB/TANK_GLASS001_DX60.vmt
UnlitTwoTexture, (*Proxies*), (*AnimatedTexture*),
KeyValues Error: RecursiveLoadFromBuffer: got EOF instead of keyname in file materials/MODELS/PROPS_LAB/TANK_GLASS001_DX60.vmt
UnlitTwoTexture, (*Proxies*), (*AnimatedTexture*),
First time I see this, so I can't say anything about it.