I'm running Cyanogenmod 12.1 and I'm having problems with the Contacts app.
A particular contact is showing in the Gmail app and in the phone app but not in the Contacts app.
Then I noticed that if I go to the phone app and select "Add contact" it shows up in the contacts app.
I cannot understand the logic behind this behaviour. Isn't Android supposed to sync my contacts with my Google account? Then why do I have to browse for a contact in Phone to "add contact"?