The problem is similar to the old enemy infantry walking right on through friendly infantry.
I had an enemy charging Calvary unit pursue my Calvary, that I ordered to run away, go through two squares then run for over 500 yards in pursuit.
Calvary running though squares
Re: Calvary running though squares
Lots of AI tweaks are coming in the patch - ETA in the next few weeks. I would say hold tight until then and if it resurfaces let us know.