For me the problem is the other way round.

I've got stuck on 3 different campaigns now, due to being unable to fight to the finish a siege where I was defending. One against 2 mongol armies, the other 2 against Timurids.

If I autoresolve I lose the battles, which I know I wouldn't do if I played to the end, but if I try and play the out the game, it crashes every time. (with the Timurids it's the blooming stupid elephant artillery bug.) (even with 1.1 patch)

(is there any way to mod a save file so I can remove the elephant artillery - change it cavalry or summat?)