I have the same thing.
I entered a new contact but can't find it when I use the search. Doesn't matter if I search on first or last name or part of it.
When I open whatsapp (this person has an account) and I search for him, he does show up.
- all groups are checked
- rebooted phone
I did notice, I entered an company for him (he works for our office in LA), and that now also seems to be a group listed in a separate section. If I check that, I see him 2 x with slightly contact information (1 version has less info).
I removed the company in his details but that doesn't make a difference, I still need to check the company group. By checking this group... I also found some non company contacts which I lost....
This is SO weird. It looks like some contacts are associated to my company group n my iphone? If I just check this group 128 contact are displayed.....