Spotify, Am I doing something wrong?

Hi,

I have various Squeeze devices around the house all visible in the Spotify app via Connect (using LMS 7.9.2, Spotty 3.1.3)

If I use the Spotify app (which I just find easier to browse with) and kick off a playlist to one (or a group of) my players with Spotify connect it seems to play so many tracks and then stop playing out of the devices. I noticed on my Squeezebox 3 in the bedroom playing a playlist this way shows 'Now Playing 1 of 12' on the display (but there are 60 tracks in this playlist). I'm not sure if it is actually stopping after 12 tracks, I haven't counted yet.

If I navigate to the same playlist via IPeng and Spotty and hit play all tracks it shows 'Now Playing 1 of 60' and seems to play consistently.

Is there something I'm missing to be able to go directly into Spotify and tell it to play the entire playlist on one of the connect (Logitech) devices without stopping?

Thanks,

Chris.