0% Map completion zoning bug.
I found out a friend of mine had the same problem some time ago, he’s fixed it but unfortunately not online, so I have no idea how to fix it and I can’t ask him. I’ll let you know if I find out how to fix it!
Okay so I just tried something.
On another character I could log in, I had a friend invite me to party. I logged out, switched to the stuck character, and everything worked just fine, managed to finally pop up in Timberline Falls. Waypointed out of there as soon as possible, now i’m just fine.
Give that a try, have a friend invite you to party on a different character (outside of Timberline) then switch to your stuck character.