I booted into recovery mode and started up the Startup Security Utility - but says no administrator found.
I am the administrator. I booted normally and checked user&groups and was listed as Admin. Even though there was no account name listed above the 'Admin' text. But it does list the account/login name on the login page.
When I boot into recovery mode, I assume the recovery partition is active and there's no admin accounts in that partition???? not sure. But there is in the main macos partition on the HD.
This is mac mini w/ T2 chip and Ventura 13.2