I think I found a bug in VA integration. "Master configuration" does not send certain settings to devices. In particular "Auto music mode" and "Music mode timeout" If you change this in "Master configuration", under "Default options", it will not be reflected in specific device settings. Switch will remain Off and "Music mode timeout" will be blank. That is why I asked if Auto music mode is working with some other player set in device configuration. It works but you can't make setting in Master configuration like I did, but you need to do it per device respectively.