I think... Spider-tron 5000 has something to prove... I'm not entirely sure what caused this, but I'm guessing I died exactly as it was firing, so it decided to loop it.
The bad part about this bug is its effect on the framerate. It fires a mortar every single frame, which turns the game into a slide-show. - Not so good, tactically.
It was already supposed to have been fixed, so the priority is pretty high. Plus we are planning a bugfix build for next Friday, or possibly the following Monday if things get too crunchy. I don't think either of us want to burn out on this.