I have synced my phone using both Facebook app sync, and Facebook inside Xperia sync. Now while the FB app is pulling the contact phone numbers from facebook, the Facebook inside Xperia is not able to do so. As a result, the fb contacts are not shown in whatsapp and some other applications. I remember with my prev galaxy, the integrated fb app was able to pull the contacts. Has anyone else noticed this problem, and is there any workaround ?