Cloud only backs up 9 contacts out of 100 or so I have, why is this?

Bullr1der87

I just backed up all my pictures and contacts, pictures backed up fine but contacts only backed up 9. Tried again same thing.

Snn5

I never found an answer to that (Verizon would back up about 15-20% of my contacts) so on my Android I just use Google drive for files and pics and use my gmail to backup contacts.