hey guys, just wanted to chime is as well that i've been getting the same crash but on during sieges. Playing with mods, and everything is up to date to 1.3.1 as far as i know. But following the fixes that your guys have tried. I was able to finally get into the battle field and also finish the whole fight. It was at Usanc Castle, 516 vs 161. not a very big battle, but with my battle sizer maxed at 100. it was always getting that crash, i tried it at 500 and same thing. so lastly i put the graphics to low and the battle sizer to 200 and it worked out fine. I'm not saying it's always going to work as i'll have to try it out on a bigger siege battle (Tho i've had 1000+ unit land battles that worked out fine prior to this siege battle). but it worked for now. hopefully an update somewhere will fix it.