I may have a solution but is not warranty that it will work for everyone, some people say that deleting your data will solve the issue but others no, what I did to play crossplataform without loosing my progress was that I first disable the automatic save on the cloud(after making a backup) that users of nintendo switch online have, after that I erased delete all my data from the console and enter the game, it’s important that you sign in to the microsoft account when the automatic message of the game appears, that the only way i found to play crossplataform and whenever you want to continue with your worlds you just have to download the data from the cloud, also this help you to not loose anything is this method of deleting the data doesn’t work for you, I hope it will help somebody!
I may have a solution but is not warranty that it will work for everyone, some people say that deleting your data will solve the issue but others no, what I did to play crossplataform without loosing my progress was that I first disable the automatic save on the cloud(after making a backup) that users of nintendo switch online have, after that I erased delete all my data from the console and enter the game, it’s important that you sign in to the microsoft account when the automatic message of the game appears, that the only way i found to play crossplataform and whenever you want to continue with your worlds you just have to download the data from the cloud, also this help you to not loose anything is this method of deleting the data doesn’t work for you, I hope it will help somebody!