From OTRS: https://ticket.wikimedia.org/otrs/index.pl?Action=AgentTicketZoom;TicketID=11092775

For some reason, Norwegian doesn't show in the list of my Wikipedia languages when tapping the language button while reading an article, even though I've chosen Norwegian as one of my languages in settings. Instead, it's listed in All languages. I've tried uninstalling the app and removing and then re-selecting Norwegian in my language list, but nothing seems to work.