Hello, there :)
my iPhone 7 behaves really very strange. I think there will be some technical problem and problem with connection. ( for example: on Instagram with contacts it writes me it couldn't connect, that I should check Internet connection and try later.) I tried to look some setting in my iMac and iPhone, and nothing...
I manually added some phone contacts to my iPhone to address book, contacts was shown on my iMac too in app Messages and when I restarted my iPhone, my manually added contacts disappeared... Can it be by wrong iPhone? Im really unhappy, because I feel that contacts must be "in" my phone, but maybe there is some mistake...I have never seen anything like that :-( Maybe it can be software mistake :-(
Than you for your help,