I haven't seen this mentioned before, so I really would like to know if others have the same problem.
Since the update, when you're out of ammo and go back to the tent to resupply your resupplied ammo displays as 0-50 or 0-120. Reloading doesn't work, you hear the sound, but your active clip doesn't change and stays at 0.
I haven't found an option that makes me able to shoot again without dying.