mojave switched my user id with another user and will not allow me to change back
Mojave switched my administrative user apple id to another user and will not allow me to change back. My administrative user account shows another users Apple ID and will not permit me to change it back. In addition the iCloud preferences window is logged into this Apple ID account and even with all iCloud accounts in selected it will not allow me to sign out. In iCloud.com my Apple ID is correct.
iMac 21.5", macOS 10.14