Mouse won't turn (Metal Gear Solid 5: The Phantom Pain)

And here's my problem. I have a bug that still hangs from ground zeroes.
- the mouse does not turn. It works only when you press any key, otherwise it does not move.
- the up button does not work. That is, if you press 1 time, it jumps to the very top and down does not work anymore.
It turns out already at the beginning of the game in the hospital I can not turn the camera using only the mouse (no need to mention the current "play on the gamepad").
The same was in gz, only there the mouse worked more or less, except for binoculars. There you had to press the magnification (V) to move the binoculars, otherwise there was no way.
Since the problem is still with gz, I hope someone has a solution. Hope you can help;)