I had a problem with this last night. I got in once but my party didn’t show up in the entrance room (and they entered too) so I left and wasn’t able to get back in. I tried logging out and back in and tried to get back in the dungeon. I got the enter story mode prompt when I wasn’t even near the entrance, clicked enter dungeon and nothing happened. Went up to the entrance, same prompt showed up, clicked enter dungeon and still nothing happened. So I kept trying for about an hour hoping for something different to happen but it never did. I was also talking to a few other people and they said that it seems that its only on Yak’s Bend that this is happening. Not too sure if that’s true or not, but I hope it gets fixed soon.