I have a friend on my favourite that was online and showed near by. But next thing you know he was offline and his profile went to the bottom of the list and last online disappeared why is that ? It always showed when he was online. 

I have a friend on my favourite that was online and showed near by. But next thing you know he was offline and his profile went to the bottom of the list and last online disappeared why is that ? It always showed when he was online.