Just completed the first scenario of the Vengeance campaign, fixed/repaired my whole battlegroup and set about for the second scenario. Here i encountered two possible bugs, one that i read about before (extra crews) but also that my immobilized vehicles weren't fixed! They had a movement of 0, and its not due to missing command/control or defend status. Happened both to halftracks and my Shermans.
Maybe this is all known since b4, but wanted to make sure. Thx for a great game guys.. really appreciate it and that its free is almost unbelievable. It even runs on my old Pentium 75
To take care of extra crew, when you're in the fix/upgrade screen, upgrade or replace the unit this will remount the crew. I got in the habit awhile ago to always hit the fix all button this should take care of any damaged units that don't show up. You can repair units but you'll get fresh crews to man them, which leaves you with the choice of upgrading crew or assigning them to the A0 unit. If you assign them during the deploy screen they will disappear. It's worth the time to go through the posts here as you'll see some great tips and learn about some other bugs, and maybe add some comments of your own. 
Good hunting.