I believe this issue has been reported before, however, not sure it was resolved.
The official Spotify app for Logitech Squeezebox Touch keeps crashing the Sqeezebox every once in a while. The crash occurs when selecting a new song from a playlist while another song is already playing in the app. The crash causes Squeezebox to reboot, which takes a minute or so, and then when it comes back, it resumes at the point where it crashed.
This happens quite often, and the cumbersome workaround is to pause every time one wants to switch song.
Since this is a service for Spotify Premium subscribers, I would expect this to be solved.
Thanks you so much in advance Spotify for giving this issue attention!