I don't see any topic on the first page specifically addressing this, so here goes. Your own bullets are currently invisible to yourself in Lockdown. They seem to be dealing damage just fine, and show up on other people's screens, so it's not game-breaking, but it is pretty annoying. One of the things I use to help lead my shots is observing where the current bullets are, and without this visual cue it's slightly more difficult. I suspect it was a side effect of yesterday's update; hopefully it's easy to fix.
On a side note, in Heart of Ice yesterday it seemed like my party and I kept getting hit by invisible ranged attacks (no lag, in case anyone is wondering). I wasn't able to confirm this definitively, so it may have been a fluke or bad luck.
Sounds like your own game is faulty and doesnt display some projectiles.