I'll try to get more info tomorrow, but here's some of it for now:
It was on the mission where you find the Ancient station with the shipwreck (that looks like a Raynor) nearby. Soon after one of the pilots said (paraphrasing) "We're detecting something happening", the screen went black. Then when it went back to my desktop there was an error box up that said something like (again, sorry I can't remember it all right now) that there was a problem with an Ancient fighter. I believe it said the AF Olympia had only one primary bank but the model file lists two primary banks. So there was some kind of compatibility error.