Hello,
In experimental build 2217, entering a FEMA camp seems to have a small chance every round to crash the game. I cannot isolate what it causing it, but twice in a row spending 20-30 rounds near a FEMA camp caused a crash (that is, “cataclysm has stopped working” and it exits out immediately randomly after a round).
I’m sorry I don’t know any more about what might be causing said crash, but let me know if there’s anything you suspect that I should try.