I've had that issue in the past, with the same location. I can't remember what I did to fix it, though. I think it has to do something with the proto files not loading correctly, or they're not marked as read. It seems like I remember something like this, but not 100%.
Maybe you can try re-installing the game over your files and try again. If I can remember what I did exactly to fix it, I'll mention it. I think I reinstalled, or just copied and pasted another set of files (I mod my own game, so I have several copies of various game files saved.)
The one thing I know that often happens (at least to me,) is that the save file is usually screwed on the location that crashes after the fact. You have to use an older one, if you have it, and start over.
Sorry I couldn't be more specific right now. I'm having a brain fart on the whole issue, other than the fact I know it happened to me, too. Maybe one of the modders know what I'm trying to explain and actually can help you with it better.