When I re-ran the scenario, I got the CTD in 1191. It could be a character's dynasty issue, where a character has a faulty dynasty code that triggers a crash when s/he dies- much like the bug that showed up in 1.03a. I'd go through and check it tonight, but my wife thinks I've bene on the computer too much already. 
If I don't see anything posted about this when I check tomorrow, I'll take a peek myself.
If I don't see anything posted about this when I check tomorrow, I'll take a peek myself.