Entra hybrid join issue caused maybe by 2 M365 accounts

Hello to everyone,

one of my collegue has 2 Microsoft 365 accounts on its notebook when we tried to do the procedure to hybrid join his device; I suppose the other account give us problem in the procedure; now, there is only one account even if I can see in event log, in AAD log, that there is an error and 2 warnings bound to the old account.

However, I tried to repeat the procedure but without any luck; what I see that it is different from the other devices, if I give the cmd dsregcmd /status is in these 2 lines:

DisplayNameUpdated : YES
OsVersionUpdated : YES

while on other devices I see:

DisplayNameUpdated : Managed by MDM
OsVersionUpdated : Managed by MDM

We have all a Microsoft 365 Business subscription and the configuration and steps for the other devices was:

1. We have all devices with Entra registered user, we started with this when we have only the Microsoft 365 Basic subscription
2. We enrolled all devices, with group policy, in MDE when we upgraded to the business
3. Installed the Azure AD Connect
4. Users sync
5. Devices sync

So, in the Entra portal we have first only the entry for registered, then when we synced the devices we have a second entry with hybrid registered and finally only one entry with Owner, MDM and Settings field filled with correct data; for example, when I make an hybrid join device, initially in the row I see MDE as MDM, then when the hybrid and registered compose one row I see Intune in that field.

For the device that give us problems, I see a row like this in Entra portal

while in Intune

Any help is greatly appreciated.