Currently on DayZ 0.63 Experimental (pc)

Every so often (at random times) I will hold right click to raise gun and this will start shooting my gun (tends to happen more frequently with M4 when set to full auto as far as I can tell) I will be playing and hold right click and it will "act" as normal as to just raise my gun and then I can shoot whereas other times when I raise my gun it will just start shooting and I have to let go of right click and then it will be fixed. It doesnt happen all the time but ive nearly killed multiple friends from this bug. Key bindings dont change and nor am I even touching LMB.