Facebook contacts not syncing
I have recently bought an iPhone 5. I synced my Facebook account from the settings menu to integrate my contact list.it had done so in the first place without any problems.but today while scrolling my contact list i realized that for few of my friends the sync had not taken place although they were in my friend list.thinking of it as a technical glitch i deleted my Facebook account from the settings menu and then signed in again and updated my contact list. But to my horror it failed to do so. The contacts were not synced. In the first place i was able to merge the contacts but now it is not happening.
iPhone 5, iOS 6.1.4