Several of us have been reporting this issue with both iOS and Windows10 environments.  BTW, the most recent iOS update well was installed on my two Apple devices well before the certificate issue emerged.  My third device which is presenting the same kind of message is on a year old PC with Windows10 installed. ... View more

Yes, I too am experiencing the same issue on three different devices.  Two are iOS and the other a Windows 10 environment.   ... View more