kiwitt
Road to War Modder
Yeah definitly bug - for all countries starting from Supermarine Spitfire. Weird bug. Tough I don't know why it appears.
Have a look in your Global Defines and make sure the none of your unit parameters exceed these. I discoved this with my Panzer Armies as they had a 95% withdrawal bonus and the Maximum withdrawal bonus (in global defines) was 90%.