I had to share this with the ORG community as soon as I saw it. This is certainly a bug, but a ridiculously funny bug nonetheless. It occured on an inward corner wall as you will see below. I have only had this happen to me this once.

As my fine cohorts fought the ranks of power peasants, the enemy began to just... fall. And fall. And fall. Most of the losses are from them walking off the wall. Look closely at the enemy's side of the wall.


Here is a closeup:


As you can see, the bodies really began to pile up:


And pile up:


This is the aftermath. As you can see, most of the dead is below. I lost a few men to the bug, but the comp suffered far more.


What say you, lads?