I sync'd my PC-based Outlook contacts with my Sony Xperia XA, using MyPhoneExplorer. It tells me 3526 contacts are sync'd, and in checking the phone with ContactsOptimizer, it reports the same number. When I open the Contacts app, it does not show some of my contacts! I discovered this, because the first one I looked for was my own - not there!
However, when I called my phone from my house phone ... my contact entry came up! Picture and everything! And when I clicked "View Contact Entry", it showed me the whole thing - perfectly! But I go back into the Contacts app ... not there!
This happens for a relatively small (but significant!) number of contacts that I could see so far - in other words, not just one ... at least 10 I counted.
I tried Settings->Apps->Media Storage->Clear Data and reboot ... clears the picture data, for sure, but not Contacts!
PLEASE somebody help me get sane again! How can the contact be in the phone, but not show in Contacts?! I can't find any specific way to rebuild the Contacts app's database - only to CLEAR DATA, which I don't want.
PLEASE ... help me get sane again:-)