Don't give up on GW2! It's a really fun game besides this stupid mission. Once you get past it, the rest of the storyline is really good. I've had this game for at least 4 or 5 years (I can't remember when I first got the game, but it was a while ago) and I still enjoy playing it and going through the story. So far, my favorite storyline is the Path of Fire one. It is really good and I enjoy it. :) I hope they fix this bug, because I just encountered it today as well but don't give up on the game.