So it seems you can't play your Sonos playlist to your Sonos Ace headphones!!!!! WTF!!!!!
As a work around would it be possible to play the playlist out of an Arc and use TV Audio swap to transfer the output to the headphones? If so would I be able to use the sonos app to select a different track from the playlist etc as I would if playing to a normal sonos speaker? Also what is the range like for TV Audio Swap, how close do the headphones need to be to the Arc?