Mariadb for webmin user database

OS: Ubuntu 22.04.2 LTS x86_64 server
Kernel: 5.15.0-69-generic
Webmin: 2.021

I’ve an issue with unix user import and user synchronisation with the webmin mysql database.

I did on the distant host an import of all unix accounts that did succeed.

But on the server side, I now see all its system accounts and NO user accounts are imported.

My question is why I can see its system accounts and not its users in the db or in the webmin users on the server side ?

on server side the unix imported user accounts aren’t listed. Only system imported unix accounts have being added to the database. No users.