Suddenly, I discover that some of the contacts on my Samsung Note 4 are no longer visible. I normally save my contacts on my Gmail account. I have refreshed and synchronize the contacts many times and it automatically synchronizes itself regularly. But these same names are shown on another Android phone I use on the same Gmail account but not on my Note 4. I also deleted my Gmail account from Note 4 contact settings and later signed it in again but the problem remains. What can I do again please?