First time posting a bug here.
Not sure if i should submit a ticket as well, but i will do so if anyone or the devs says i should so.
I was doing the S'harien's Sword in the (name of system) system, and as luck would have it, i got a nice drop from the fallen uhlans/centurions.
I eqquiped it, and i was face with this bug.
The weapon itself is a Plasma Auto Targetting Assult Mk VI, and the plasma is working for the alt firing mode (number 2), but for the primary firing mode (number 1), it seems to be... a phaser? and even more weird, it is firing where my toon is holding the weapon, not the muzzle (only for mode 1)
Yeah, I had the same problem with that weapon (although I think I had it with the Mk IV, maybe it's all of them...). It appears to be a bug, so I'd file a report if I were you - the more data they get, perhaps the easier it will be to track down the cause.