I ran into an annoying bug where they repeated the Red Team "loss" phrase (that you hear if you lose a match on the red team), freezing everything up entirely. Very annoying to hear, and it required pulling the plug. Also got caught in the "post-game," where i respawned after the game ended and everyone else left. Couldn't quit normally, had to pull the plug there too...
Monster Hunter: pissing me off since 2010.