I Think this is a bug

So I finished act 3, entered the portal and was transported to the riverbank (act 1 cruel). But I still wanted to play some areas on act 3 normal and that's when the problem starts. When I go back to act 3 encampment via town portal my waypoint is not there anymore and I cannot use the Encampment big portal to move across past and present versions of the encampment (to use different waypoints) because everytime I go through the portal I am transported to the riverbank.
Basically now I depend on other peoples instances to play on act 3 normal. Sometimes when I log in I am on the past version and sometimes on the present version of the encampment but I have no control over it. Am I missing something or this is a bug?

By the way, the game is great, I am really liking it (with some minor issues). In early access is already better than D4.