At around 3:40 PM on 7/30/2019, the Jamf server started distributing a wallpaper to all iPad devices and made existing applications on the iPad invisible. We were able to stop the process and the applications on iPads reappeared shortly after. However, the background appears to still be set on the affected iPads. The background wallpaper can be reset by going into Settings -> Wallpaper -> Choose a New Wallpaper. We are currently looking into what happened.