This is not necessarily a glitch however it could lead to potential problems... My situation was that I was in the Team-up queue for a boss fight and as I was waiting another pair of wizards happened by and entered the sigil. I went ahead and entered the sigil with them. I did NOT however, think to cancel myself out of the Team-up queue. So as we neared the end of the fight and were just about to land the knock-out blow the Team-up queue had evidently been joined by other players and the timer had ticked down to zero and BOOM - I get pulled out of the fight I'm about to finish and get deposited in a new fight with the same boss and new team mates. Frustrating to say the least. Luckily for me it wasn't an hour long end-world boss battle. This was my own fault and it's not really a glitch or a game ender but it is something to watch out for and maybe something KI might want to address in future tweaks.
