Windows 10: Duplicate devices in "Microsoft Family"

Installed a new SSD on my sons PC. But first I updated the old SSD with win 10 to win 11, then I did a reset on the old SSD in hope to be able to make an image to clone to the new SSD. That failed so I had to do a new fresh install to the new SSD from an Win 11 ISO. That resulted in duplicate devices in some places in "Family Safety".He's only got one active device in his MS account that is linked to MS store. How do I get rid of the two duplicates that aren't listed anywhere where I can delete them??

:)

 

Microsoft Account Device Duplication

For some reason when viewing the list of devices with apps and games in my Microsoft Account some are duplicating, meaning I have to remove duplicates or I reach the device limit.

Are the any fix's for this?

 

Family – Device duplicated after installing Launcher (Android)

My problem is very similar (but not identical) to these community questions:

• Why is the same computer listed twice on the Store App, under Settings: Your account:
  Your PCs?
• Microsoft Account Device Duplication

I installed Microsoft Launcher on my child's Android phone. Restrictions were then setup, and so forth, by me. Then I logged into the Family portal of my Microsoft Account to see how things reflected. To my surprise, my child's phone listed twice -- under
different names. I am absolutely sure of this because I double checked the names: first is the phone's model code; second is the phone's official marketing name.

I have not touched my Windows 10 PC in this effort. I did everything on Android and the web. So I think this is a bug somehow initiated by the Microsoft Launcher.

My two questions:

1. How to fix it? Which is the "real" device?
2. How do I report this problem to the Microsoft Launcher team?