In the menu under Roster, please replace the "snap party app" option with the fireteam privacy settings. I've seen it being used on the PlayStation 4 version and the Xbox 360 version of Destiny. Why is it not on the Xbox One version? I don't recall this being any different. You can make the change in the Friends app on the current dashboard, but the new dashboard coming next month does not appear to have this function. Getting to the party on Xbox One is a simple effort, but changing the fireteam setting requires you to open an app and make the change there.