Jeffrey Vaughn, Content Designer for GW2, recently dropped a hint about Feburary’s content release date when responding to a player question.
I have good news and bad news.
Good news: I think I found the issue, somehow there were 2 copies of the door, which could get out of synch. (So one door thought it was closed, blocking entrance, even though the visible door was open.)
Bad news: I don’t expect the fix to go live until the next major content update, at the end of the month.