Sent back to waypoint.
It just happened again. I teleported to Phinney Waypoint in Queensdale and made it all the way to the cave full of Ettins and a Rich Copper Node north-northwest of the waypoint. As soon as I drew the attention of the mobs, I was sent back to Phinney Waypoint. Aggro’ing mobs seems to be the trigger, somehow.
You’ll need to open a ticket with support for a direct response. You can do that by clicking the link above. If you do more testing and figure out that aggroing the mobs is definitely the trigger for the bug I would let them know that as well. This does seem like a strange bug and I haven’t heard anything like this before.