After two months of farming for Waveform I get an exotic holster drop and as soon as I step up to it to see what it is and pick it up it disappears. Not in my inventory. And the rest of the drop is still on the ground. This is beyond maddening. I've got to be the only player in the world that doesn't have twenty of these and after solo farming that watch level 4 control point with rogue agents and having it just disappear in front of my eyes is enough to just give up on the game entirely.
It's an old bug with complaints going back two years. Fix it already!