I lost all my characters from my account in Diablo 3 on Xbox series X, I was playing with my second account and I added my main account in local game with the xbox’s invitation system, then after, the game bring me back to main menu and I had to recreate a new character from zero on my main. This is absolutely intolerable coming from a 10 year old game
You doing this on one Xbox? You might need to have it on 2 different Xbox’s. I have more than one account. I can’t run 2 accounts on the same computer at he same time. There is software out there to do this for PC’s But I like using 2 computers.