what browser are you using to get this? this is normally a known issue on mobiles.
Firefox 36.0 for desktop - last version.
that option is mainly for users that do not want to see chat. but, in the next update, there will be a link so you can still get to the chat page and not have it on the index....
turning it off in the UCP only hides it and does not remove the code from the index page
that will good, maybe make option for turn OFF chat?
something like View chat on index page: YES/NO/TURN OFF
but if users turn it off - dont hide, make realy turn it off.