I’m using ver 2.201 on a raspberry pi B+ , its working great. But when I use clients to connect to mpd like sonata or mpdroid , the webUI playlist and tracks are no longer correct. The other way works fine , play-list from the WebUI show up in clients.
That is by design, Volumio will handle the playlist part and will determine whether or not MPD is used for playback.
If you add a playlist it will not show as such in MPC, only the playing item in MPC will show when using the command line for example.