A short while back, someone (I think it was Ingo van Thiel) posted a topic about units passing through closed gates. Of course this is a bug, but I found today that the bug was even bigger.
I had just finished some work on my campaign, and decided to go back and replay the Joan of Arc campaign. On the third scenario (where you have to destroy 3 British castles), one of my knights was chasing a Ram. When both units approached the walls of different player, the Ram actually passed through the wall and to the other side. My knight even tried to follow, but when he got directly in the middle of the wall, he was frozen there.
I was confused for a while, and destoryed the wall. He was then freed, and acted normally.------------------
If you can't join 'em, beat 'em - ThePunishingOne