Cannot see phone numbers of my gmail account

Hello,
I have just bought an MX5 and immediately updated to 5.1.2.0G and then factory resetted.
All things works but one, the most important.
I connected it to my gmail account.
I sync the contacts but when I go to the dialer I see all names but without phone numbers so I cannot call anyone and when they call me I do not see the name but the phone numbers.
Contacts in sim work.

What can I do?
Please help me!

Mario
PS: I have already installed several apps so please do not tell me to reset the phone again.

@Mario-Giammarco Update: I go in the google contacts on web. There I use the remove duplicates to clean some garbage. Now the contacts updated are also in the phone with phone numbers. But only them!

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