Gamertag Swapping.

Right, well that's because the save files are tied to the Gamertag (profile) itself and are non-transferrable. Even if you change the associated email addresses (Microsoft Account, or MSA), it remains tied to the same profile.

As such, the only solutions are that you either continue to use each other's profiles or, and this would be recommended, you sort out who's using which profile henceforth and bite the bullet as regards starting over for particular games.

The latter means that everything is right going forward and the problem is not exacerbated.

I know that's not the ideal solution you were looking for, but is the best in these circumstances.

What I would try is to have him change his tag to what he wants, and from there, keep checking for his older tag yourself to see when it gets released and is available. Once it shows as available, you can change your own tag to it.

I guess you could maybe let your daughter continue to use your account, create yourself a new account and as Netflix and Amazon video use their own login rather than your Xbox login you'd at least be able to watch those without logging your daughter out
each time. Not an ideal solution but it would work.

Or

You sign into your daughters account and use Netflix/Amazon video on that maybe. That may be a problem though with regards to adult content on those streaming services.

Yea i was meaning add it to sharkey xo. Thank for the info guess iv got to pay.

You would have to change Tag2's gamertag to something else in order to free it up. There's no way to completely remove the account from the server. So you'd have to pay for 2 changes.