As long as you're looking for that lost corps, please check on how reinforcements are placed. It's the same game. I posted the problem to Mantis a few days ago, but I'll mention it here.
GB & FR at war. GB lands at La Rochelle (April 05), takes city, places garrison and sits for a month (May 05). During same month, GB moves fleet into harbor. Next month (June 05), in preparation of evacuation, during GB reinforcement, corps picks up garrison (but is not in city). Game log states "GB controls La Rochelle". But during FR reinforcement, FR is able to place an Infantry factor in La Rochelle which forces GB fleet to evacuate. Corps is still in area. Is control of an area checked seperately for the area and the city? Seems to me that should only happen if there is a siege going on.