There are two bugs when managing Playlists in the Browser Tab. This bug has been reported before for previous versions. It is still there in version 2.031.
The Play option deletes the existing queue – which is a bug, adds all the tracks in the playlist and then starts to play the first track – which is correct.
[Play works like the Play and clear option]
The Play and clear option stalls Volumio entirely for a bit – which really shouldn’t happen, bug. Correctly clears the queue, but doesn’t add the tracks or start to play the first track – bug.