Gave a command to Voltigeurs de la Garde, Iere Battalion (Brigade Chartrand, Division de la Jeune Garde) an order to move 300 yards forward. The unit hit some buildings in the petite villa (or ville?) on the sw end of town near the objective hex and just began circling the small building. Attached is a screenshot of the result.
to the right of the fort is a small set of buildings. You can see the unit wrapped around one of the buildings with it's destination flag off in the distance.
Update: Got it unstuck rather simply by just giving it another location command, but you might want to look into why it got stuck in the first place.
