HELP - Skipped entire ATLAS act, including boss, due to joining a multiplayer game

Hi all, I was trying matchmaking, which seemed to suggest that it would match me with someone who was also playing the atlas act. I joined a game… And they were at the end, after the boss kill.

No big deal. I quit, try to join another… And see that my game has also advanced past the boss kill.

I just missed out on getting to play an entire planet.

I paid for a full game. How do I roll my story progress back? You’ve got to be kidding me if you tell me that I have to start over at level 17…

Had a similar issue, it’s extremely annoying. If only there were manual saves you could load whenever something like this happened.