Android :: Contacts Photos Does Not Work After Insert / What To Do?

I'm writing a small backup application for contacts and i encountering some weird problems. Firs of all I retrieve data through the content resolver code...

} Such operation done for each ContentProvider I retrieved data at backup. I'm not backuping Contacts.Photos, because I don't want to do that. But next, strange thing happening, when i try to attach photo to a contact in Contacts application. First of I select a contact i wish to modify. Then clicking to add icon. Selecting photo, cropping it. And it appears near the contact name in contact editing activity. But after I click "Done" and android says that changes were successfully changed, icon just disappears like i never added it to a contact. And nothing helps after this restore, I tried rebooting my phone, deleting all contacts, deleting all contacts programaticatlly and all this doesn't helps. The only thing that helps is factory data reset. This problem both happens on emulator and on g1 phone. Later i had an idea so I've taken contacts.db file from fresh emulator, where photos feature were still working and saved it. Then i performed backup- restore operations. And compared the databases. They were identical. And still photos weren't inserting anymore. And this problem also happens whether I had any photos added to contacts before backup or all contacts were without photos. So I'm kinda desperate now, because I don't know what to do.