Thoroughly frustrating app that works as intended maybe 70% of the time. Changes can be made to the app that are not communicated to users leading to web searches showing others having the same problem & *possible* resolutions. Most recently, all "groups" disappeared, but when requesting them on a device, they ask thricely "do you want to listen on 'music group,' 'music group,' or 'music group.' Saying music group renders a msg that it can't be found. Then why was it an option?