To be honest I am not sure.......this is a fresh game with a complete recent reinstall (three weeks ago) but .......I think previously I had a cocked up installation anyway....(there's another post from me in here about that from about a month ago).....so that is why I can't definitely say its Alex related....I think it is Alex related because in several years of playing this mod I have never seen this in just an EB install....but this is a guess

what I can say is:

1. These ctds became more prevalent as the game progressed
2. They seem to be related with sallies
3. Certain battles around cities caused a ctd every time (well as far as my patience would let me test, about 3-4 times); when I subsequently withdraw and then fight the ensuing battle away from the city there is no ctd
4. Playing the Averni and current squishing the romani which seem to be the most frequent ctd (if not all, also current fighting the sweboz but can't remember a ctd with them)

Hope this helps....know this mod isn't supported so hope this is of help somewhere