Bug: Character stays in-game after user disconnects

So first time this happened it was an assassin in our base.The player wasn't connected anymore(at least I couldn't see his name when I looked at the scoreboard).So his character was standing in place and firing shurikens,killing our turret.When he destroyed it,you couldn't build another turret because he kept firing shurikens that way.And you couldn't kill him,knock im or anything.This happened 2 days ago.Didn't really think much about it until what happened tonight.
And tonight it was a tank.Our MB shields dropped and he started shooting it with a jet gun.He got disconnected,we couldn't do anything to him and our MB died.
Both of their health/class icons were red if that means anything.Maybe they died,then something weird happened when they were ment to respawn.
Known problem?

Someone disconnected right in the middle of firing at a turret huh? Interesting problem, perhaps it's also indicative of connection problems on that clients side? Or a new exploit...