How about the bug where the operative on my team pops some kind of team invisibility, and I stay invisible the rest of the match. That happened to me once, and it was weird, all you could see was my name.
This happened to me twice months before 1.4. Hasn't happened to me in a while though. I have also seen it happen to players on the opposing team sometimes (very recently, just a few days ago I saw one). You'll be able to target them, but all you can see is their name in red above their heads.