If Netflix on your Xbox One is giving you problems, you might need to reboot the program to fix it. Go to My Games and Apps on the Xbox One dashboard by opening it. Look for the Netflix app and highlight it in the list of apps. On your Xbox One controller, press the Menu button. From the option that displays, choose the Manage app. Make the choice Clear saved data. You may confirm that you wish to delete the data by choosing Yes. Return to the Xbox One dashboard and restart the Netflix app when the data has been deleted.