The Mk IX Plasma Full Auto Assault displays the correct 2ndary ability <super split beam>, whereas the original fireing option <giant lazer> incorrectly displays <along with incorrect sounds> As a phaser gun of the same variety. I don't know if this holds true to all in this class, but it would be a shame if one of my favorite weapons looks like a boring Phaser for the time being.
Bug #2: The primary fire shoots out of thin air. Specifically, 5 feet above the gun.
When you see apparently bugged items, please submit a Bug Report. If it is a ground item like this, please submit the bug report while you are on the ground, to give us the best information on what you have equipped and what you see. (Likewise with space items, submitting it while in space gives us additional information.)
For bugs with tooltips or descriptions specifically, you can highlight the item to bring up the tooltip, and then type /bug to capture that in the screenshot.