Turns out, a modder fixed the sieges in Bannerlords.
Now the army will properly climb the ladders.
Hopefully, the devs will implement this mod into the base game.
In my opinion, the free ladders should not be removed if you build a tower. So you can actually have siege towers & ladders in the same siege, leading to more entry points.
Because sometimes, using the free ladders (which are removed if you build a siege tower) is much more effective.
Now the army will properly climb the ladders.
Hopefully, the devs will implement this mod into the base game.
In my opinion, the free ladders should not be removed if you build a tower. So you can actually have siege towers & ladders in the same siege, leading to more entry points.
Because sometimes, using the free ladders (which are removed if you build a siege tower) is much more effective.