I am trying to sign in to iCloud after having signed out. I keep getting the message that my account is already signed in to iCloud and that I should delete it from Internet Accounts and sign in again.
It's not listed in Internet Accounts.
I've signed out of iTunes
and any other app that has used this account (list these please with an edit)
I've rebooted.
Nothing seems to help so I wonder how I can troubleshoot this further.