Unable to start screen share from iMessages - SSInvitationAgent unresponsive
From within iMessages I request a screen share to my Dad who is also using iMessage. He never gets the request, rather the SSInvitationAgent is reported as unresponsive by the CleanMyMac application.
I am able to screen share with others, just not his Mac. The Mac is up to date.
Is there some way to reset the SSInvitationAgent so that he can get the invitation?