I haven't had this happen with reinforcement armies that I have noticed, but sometimes it does happen with any unit it seems. I always thought it was a vanilla pathfinding problem - since it could sometimes happen in flat terrain, or terrain with slight hills, or on bridge battles. Also sometimes with a unit trying to enter city gates. Since we haven't fooled around with that sort of stuff (until the newest build, with some city changes), I never saw reason to associate it with EB.

I definitely have never had it affect the outcome or delay a battle though. Not even close.

What are others' opinion of this? Has this happened to anyone else? What could it point to?