Contact Key Verification Issue (recurring)
Setting up Contact Key Verification with multiple devices (all running the latest OS) produces an issue that does not have any other description as to the issue or its cause(s) with no other option but to turn off/reset. Right now, I just cleared the notification (but the issue is still there).
Called Apple Support and was put in contact with level 2 support before - but no resolution provided. Maybe someone from the community experienced the same and successfully resolved it. HELP.