I am using version 2.041 ( 2016-12-02 01:22:24 ) on a RPI 2 ( model B, I think ).
From time to time, the webUI is acting a bit strange.
Can start a internet radio stream, it plays fine, I can adjust the volume up and down fine, but the rest of the interface thinks there is nothing playing, thus I cannot stop the music again… I can navigate the settings and library just fine, and a reboot of the system fix the problem for a time.
If I go to the library and start another radio station or local music, UI catches up and turns from the “play” button to the “stop” button and everything works again.
Have not tried using Volumio with anything else than the web interface, I hear the big kids talk about mpdroid…