When in the gunner seat of a veichle, in the optics mode. and you zoom with the right mousebutton, the view stays zoomed in. i am unable to un-zoom this using numpad - or any other zoom related key.
Switching to drivers-seat and back does not reset the zoom on the sight.
Get in gunner-seat of veichle, engage optics mode. zoom using right mousebutton.
The view is now stuck in the fully zoomed in possition
I have a steelseries sensei mouse if you somehow think that is relevant.
I had this same problem. I then left the vehicle, and the bug was still in effect when I re-entered it 5 minutes later.
I should also mention that the bug didn't occur immediately for me, I was zooming in and out and firing for a good few minutes beforehand. I don't remember anything appearing to trigger it.
Please let us know in note section if you are still able to reproduce this issue in latest Developement build.