I have one application where admin posts on the wall of one facebook app and same appears in my application (in PHP). We show like button for each of these posts and when any logged in user likes any of them it throws error "exception 'FacebookRestClientException' with message 'User not visible'". However, if user is a fan of app or he is developer of app then this Like works perfectly.
This used to work couple of months back but now it doesn't. Seems this is due to new facebook permission change in June.
Anyone has idea about this or anybody faced similar problem?
Thanks in advance.