Does anyone know what the current status of synchronizing shared address books is? After browsing through previous posts, it appears that only the owner can sync the shared book successfully. Is this true?

We have a shared address book that we would like synced. I am not the owner and I have the book available on my phone but can only see one contact, which happens to be the owner of the book. The other 10 contacts are missing.

Any help on this is appreciated. Thanks.