eMail not reading address book

As I start typing a recipient in the to block of either a new e-mail or one I want to forward, the to block no longer offer suggestions out of the address book.  This is a new issue in the last week or 2.  Multiple platforms (iOS and Windows) and multiple browsers (Edge, Firefox, Safari).  As far as I know there have been no changes I have made in my Comcast configuration which should cause this to happen.  Definitely would like that feature back!  Thanks! Steve