I have just installed the new version of Volumio 2.201 as I was having a lot of problems with Airplay on an older version. The basic connection and playing is now much better but I note several problems with the WebUI during playback
Starting a new Airplay connection produces the details of what us being played. But
1: any change in volume resets the played time in the left hand dial to zero (the total track length seems to be correctly reported)_
2: any change to the queue (either deleting all or deleting an item) removes all the playing information from the playback screen ,although the Airplay connection continues to play
With a new airplay connection and the playing information still visible the play button on the top bar shows a disabled hover indicator - useful. But once the info has disappeared as in 2 above then the play button appears active. Trying to play a library track then starts to work but fails with a message about alsa in use. The airplay continues.
There appears to be no consistent retention of the state of the airplay connection so that any refresh of the page (which is what I assume a volume change does) loses the info.
None of this is a killer problem but it would be good to get some consistency