In-game T-55 tank (Warfare)

I noticed that in steam version 1.0.8.0 the T-55 tank is turned over in the game, which does not prevent it from moving and shooting. But for the enemy, he becomes invulnerable. The shells just fly through it. All other units are operational. I met two variants of this error:
1. The T-55 tank is completely turned upside down
2. The T-55 tank has a turret lowered inside the hull.
In one mission, you can find both options at once, and this state of the T-55 does not depend on Save / Load. If you meet one inverted T-55, then the rest will also be inverted.
How to fix? Reinstalling the game does not solve the problem.