I've had this bug a couple of times on Shae, Harec and Kuzmann.
Sometimes when punching or grappling an enemy (particularly players), I have noticed that I won't receive any ammo. This is particularly frustrating when playing Antagonist as Shae where players are my only form of ammo restoration and getting melee kills to restore ammo is risky. I've had this happen twice consecutively on player kills while being out of ammunition.
