Yesterday I had a rather interesting bug in Arland Gamemaster on Experimental (0.9.9.83) - no mods.
As Gamemaster I was in Gunner Slot of BTR when it was blown up (by me or by players, cant tell).
As a result my player character was stuck in a loop animation, even after killing it and creating a new.
Even more annoying: Taking control of my own player character or *any* AI led to me still looking through the gunner optics with the BTR crosshairs angled and blurry vision. However, controls for the remote controlled unit worked and everything else Gamemaster related still worked.
Recording of the phenomenon: https://www.youtube.com/watch?v=WiWeO06eT1Q