Try unplugging all of your additional controllers - gamepads, steering wheels, joystics, etc.

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Let us know if it worked and helped or not!

If not, then please post video from the bug and share us with your DXdiag and output log files?

Output log file location:
c:\Users\XXX\AppData\LocalLow\DeGenerals\TankMechanicSimulator\

Use https://pastebin.com/ to share log and dxdiag files.