Indeed a mystery. I have been investigating all the possible angles as to why there are difficulties getting "People" to wok.
One thing, have you tried clicking the three dots next to the "Contacts", then selecting "Settings". You can then add a variety of accounts, one of which may contain your contact list
One thing, have you tried clicking the three dots next to the "Contacts", then selecting "Settings". You can then add a variety of accounts, one of which may contain your contact list