Zenith Not Firing

[Mantacor]

Ever since the Equinox Prime update, I've been noticing a strange glitch with my Zenith primary weapon. When the timer for the alt-fire mode ends, there's a fairly high chance the ammo count will disappear entirely and the gun will refuse to fire at all. Additionally, if you try to reload the gun, it will either not respond or put you in an infinite reloading animation loop, and you can't switch to other weapons at all either. This seems to happen whenever I'm sliding/rolling or being affected by knockdown while the alt-fire disc expires, and the gun will only resume firing once I've activated the alt-fire again instead of returning to auto mode like it should normally. This has been happening so often to me that I'm wondering if anyone else is getting the same problem, or if there's similar problems with weapons that use an alt-fire mechanic making the gun unusable.