Hello,
I’m not sure, if it is a real issue, however, if you try to ghost a user in Arc, you have to enter (reenter) the passwort for your user, even, if it is said: save the settings. It means, the field for the password is empty, as also the name for the CAM-Namespace.
If I try to relogin as me, there is no issue.
With best regards,
Vitalij