Hello. I've been working on a level in Hammer and it has been going well. However, after some very minor changes I made, the map won't load. Here is what will happen.

I compile the map. Portal 2 loads. It goes to the loading screen. Right as it reaches the third loading dot it crashes, but it acts like nothing was wrong. No error message or anything. And I tried others, it ONLY does it for this particular map. Anyway I can solve this? Thanks,

How optimized is your chamber? I know that I sometimes get this problem when my chambers are very poorly optimized.