Level loading issue

[freechips]

I'm at Omicron and I can't progress because the level loads incorrectly and I keep falling through the floor into the void. As cool as this is, I'd really like to be able to play further.

It happens as soon as I enter Omicron, after the loading screen.

As you can see in the two images linked below, various actors aren't being rendered (including collision data).

http://imgur.com/a/uMtEI


Any help is appreciated!