After Updating to iOS 10, contacts have disappeared
After updating my iPhone 6s+ to iOS 10 last evening, something strange has happened.
I have lost almost all contacts. I cannot see them under my phone book. However, If I have a conversation with them via imessage, or watsapp, I copy that number, paste it on dial screen and it picks the contact name up.
After making the call, If i search for the same person in contacts, it does not show.
Probably sync issue? I have checked all accounts that had contacts and all settings are okay.
Can someone help please.
Cheers
iPhone 6s Plus, iOS 10