current library on xbox one?

when I add new movies to the library, xbox does not show them - first i must de- and then re-install plex on xboxone, then i see the new movies
How do I get otherwise the current library?

Plex on Xbox One should show the new content when you move around some pages and then go back to the main page.

If this does not help try force closing the app (in Xbox Home: menu button on your controller -> Close) and restart the app.

There should be no need to completely reinstall it.

oh perfect, it works!

thanks