I rolled over my T-34 in stalins fourth scenario.
Then suddenly the graphics for my own tank disappeard and the engine sound raced up into a high whining engine sound, pretty loud and higher pitched than usual (over reved). I could still change postions, fire the turrent gun and the mg (saw hits on the ground from the guns fired). After i switched off the engine the whine stopped, but still no graphics of my own tank.
There was the little green text in upper left corner stating the ammo when in turrent or mg, but no other graphic of my own tank.
Could not tower since it said im still moving, i had to alt-f4 to get back out of the t-34. I am not sure if vehicle supplies would have helped, had none available and in the scenario no chance of getting any.
This was with ah2 2.07 patch 1 on the new karelia map (the one up on 25th of march).
I have it on film (the lying, not the roll over i switched on film after bug started)... tell me if you want me to send it to you.