Sorry if this has already been posted. I looked and didn't find anything. Basically, when I was just about to enter the HCZ, I fell into nothingness. I'm going to guess this could happen to any room. Afterwards, I tried to load the map to see if it would fix itself, but it crashed my game. Has this ...

If I play the game with all my lights off with the windows closed, I'm able to see with no problem.

Why don't you give it a shot...?

I remember one time, the first room (with the gas mask and key card) didn't spawn. So, I guess that was unbeatable.

I heard the seed "32" was good, but I didn't look into it that much. Could give it a shot.