Account showing member but discovered as Guest even AccountType is showing Member.
User is A Guest that was invite via link and created as a member
To verify, navigate to Entra Portal>( Affected user)> Properties> Seek for the value of "CreationType"
If the value is "Invitation" it is a Guest ; Empty value is an internal user.
1) Refer to the below Microsoft Official Document to convert a Guest account to an Internal User
https://learn.microsoft.com/en-us/entra/identity/users/convert-external-users-internal
2) Once the above are resolved, wait for 10 to 15 minutes and perform Account Refresh from ODM for the affected account
3) Confirmed that the account is no longer showing as Guest Account in ODM.