I'm not at home so I can't test this at the moment, but it can't really be the artillery's fault because McCall, Viele, Tyler, and others have no artillery and still could not move to Manassas. I am not suggesting that artillery is the problem, I was merely suggesting that you lump them into an artillery reserve under the best currently available general with artillery capabilityAnd why would Mansfield (only infantry) be able to do so but others cannot?
Edit: Winter is adding +1 MP cost, but I still don't get why Mansfield can move. Check the movement on the back of the manual (or inside PDR manual you access through the game). I have forgotten if the +1 is during regular movement or only during reaction phase. But if the move you have cut and paste on this forum is a winter move, I'm pretty sure you need 4 MPs to move across the Long Bridge. The reason Mansfield can move is that he has 4 MPs, while the other infantry leaders have only 3 MPs.I tried saving and reloading several times because I was aware of the bug (which calls into question the pronouncement that this game requires no further patches) and that did not work.
I feel like there is a good game here, but I'm having trouble getting at it. Did you play the tutorial on movement? It helpsBy the way, what are the white numbers on the map? The white numbers are the remaining railroad capability for that region. USA starts at 75 per region; if raided and track burned once it goes to 37, if twice to 0. If it goes to zero you can repair it fully but only get 37 the turn of repair.
Plus, what would cause my units in Washington to suffer attrition? Every land combat unit is subject to attrition as I recall (although perhaps not field or heavy artillery; check the rules on that.
Those are minor questions next to my complete inability to move, but I'm curious.
"L'audace, l'audace, toujours l'audace."