Minor issue on peoples lists I'll admit but equiping this very rare (purple) item just reverts character back to their uniform.

I have an invisible phaser that shoots from the floor between my feet if you'd like to trade.

I've got the same problem. Got this new very rare armor tonight and it's model (if it has one) isn't showing when I equip the armor.
It simply looks like as if either I wear no armor or I have hidden it.

CRYPTIC!

During ground combat when swapping weapons repeatedly, the graphics of the weapons will disappear and you will have lasers coming out of the hands while the gun holding position is retained.