I signed out and back in and the icloud sync message is gone! However, the main reason I did this update is to get a Find my Friends invitation to follow our new airtags (that my wife set up). For some reason I still cannot get the invite even though she sent it several times. again it seems to be related to this latest 17.0.3 update. if you or anyone else have any suggestions for that, I'd appreciate it. My son did the update and received the invitation without problems. thanks.