Yeah, I've been having the same problem with my personal unit mod, can't really see what I could change anymore.
Sorry for the double post, but appearently I misread Dresden's note on the unit changes, the units were missing the new historical texts that appearently have become mandatory with the new patch 18. https://drive.google.com/open?id=0Bz...EZFN1VUOUpMQ1E tell me if it fixes the crashing bug this time.