Search Issue in Dialer, Contact not returned (Sony Z3 Compact, Android 5.1.1). What can I do?

[AC Question]

Search Issue in Dialer, Contact not returned (Sony Z3 Compact, Android 5.1.1)

In Dialer, when I search a contact by Name (characters), even if Contact is in contact list, is not returned. If i search by numbers in phone number of Contact, contact is returned. This is happening only in Dialer.
Do you have any idea what can cause this problem...?
Do I have any possibility to send/upload an word file describing the issue, step by step, with photos?

Thank you
Radu

 

[B. Diddy]

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