Hideout Stuck After End Game

I am level 66. Just beat Act 3 on Cruel. I am working to start mapping and went to my hideout. For some reason, my hideout, the dreadnaught, seems to be stuck in Act 3. I still have the "Legacy of the Vaal" quest to Enter the time portal in town to travel to cruel difficulty. I have clearly already done that and my hideout is now rendered useless because it seems to live in an act rather than transcending all acts.

Same level, same issue. I even went to present day Ziggurat encampment and Doryani was there with an exclamation point over his head. Talked to him and when I went to hideout still had the same issue. Annoying part is I can't edit my atlas points.

I just encountered the same issue as well. It's not my first character, so I had hideout already unlocked, so instead of opening end game map from default location, I went to my hideout. Then, it won't let me open end game maps because somehow game doesn't think that I finished main quest line. Since I have no way to get back to default end game location anymore, I am stuck.

I think I found a solution. On Act3 (cruel difficulty) map, there is The Ziggurat Refuse (Past) teleport. Once I go there and finished one map, Endgame tab is showing for me now.

Yep, the way to fix this is to run a map from the first spot it takes you to, leave, then go to your hideout. For some reason the dreadnaught hideout counts as being in act 2 until you start mapping. Super weird.