AutoDomain 5.16 and below does not properly identify Local users..
Just found an issue with AD 5.16 and previous where the logic I was using to identify local users is flawed. It identifies local system accounts fine, but not manually created local users.
I have a 5.17 test version that resolves this, so if this feature is >critical< to you, please get your professional services person to make this available to you. If it's not critical please wait for the next public build.