Hi Kale
If the issue is truly caused by Xbox 360 services still referencing an old gamertag, unfortunately there is no user-facing way to manually force a gamertag sync between Xbox Series X and the Xbox 360 backward compatibility system. Xbox 360 profile data is synchronized by Microsoft's Xbox services, not locally by the console.
A few things you can try:
- Launch an Xbox 360 backward compatible game and open the Xbox 360 guide (Menu + View buttons).
- Delete the Xbox 360 profile from the emulator and re-download it.
- On your Series X, go to Settings > System > Storage > Clear local Xbox 360 storage, then restart the console and try again.
- Remove your Xbox account from the console and add it back, then retry the profile download.
If the profile download still attempts to use an old gamertag, that suggests an account-side synchronization issue. Since you've already worked with Microsoft Support and identified that behavior, the next step would be to contact Xbox Support again and ask them to investigate the Xbox 360 backward compatibility profile associated with your account, as that is not something users or members of the public community can manually help/refresh.
Hope you'll get this sorted out!
If this answer was helpful, please click "Accept Answer" and vote for it. If you have additional questions regarding this answer, please click "Comment".
Note: Please follow the steps outlined in our documentation to enable email notifications if you wish to receive notifications regarding this discussion.