Been clicking commence for the last 10-15 minutes now. Just withdrawal after withdrawal.
I also hate when you see 6/6 healers or whatever that have readied themselves, someone withdraws, and then it readies up again and only goes to 5/6 healers and then it times out. It's like, did one of the healers from the last time just click commence and walk away expecting to come back and be inside the dungeon? Ugh -_-