I joined in the game and noticed that I was unable to put my weapon down. (It starts the animation but instantly stops it again)
I restarted my game and after that I still had the same issue. I crouched in a bush and pressed 'G' to throw the weapon away.
Suddenly my character starts hitting the ground with fists. I pick up my weapon and it starts shooting.
I thought it may be an input error so I restarted my PC and I replugged my keyboard after booting. I started DayZ again and still the same issue.
I remember having this issue on the same PC a while ago.
playing on stable (0.62.140275)
double carrying mosin (on back) and mp5 in hands
overwolf, nvidia shadowplay both running in the background and also razer synapse