I'm playing WE and invaded Belgium. I've captured all of Belgium in addition to Malmedy, Aachen, Koeln, Duisburg and Ruhrgebiet (Essen). I built a level 1 depot in Aachen to push supply but Aachen did not send/receive anything, so I built another level 1 depot in Liege to act as a relay. Pressing '2' shows Liege sending and receiving plenty of supply but Aachen still isn't pushing anything. I have 3 armies starving at the end of the supply line, and I'm having to operate a shuttle bus service to Liege to fill supply wagons. I just declared war on Luxemburg to capture the capitol city and hopefully open up supply through that route. Any ideas what might be happening?