I noticed there isn't a discussion about this yet so I thought to make one. So I consistently get this issue, where an attacking enemy AI with a medium size army (10-20 units) will attack my settlement, they will push all of their towers to the walls, but the moment the first tower locks onto the wall and starts funneling troops over, the rest of the enemy siege assets will do a u-turn and then stand outside the settlement, usually within missile range for the rest of the fight. Makes defending sieges very time consuming. Happens when I have the whole medieval kingdoms 1212 AD modpack and the additional medieval city map mod in use. Happens consistently in both modpack maps as well as Total war Attila maps. Happens consistently in campaign siege battles and custom siege battles