Spotify playback on SONOS too fast

Hello fellow-SONOS-users,

I have a strange problem using Spotify on my SONOS-system. I have the idea the playback of the Spotify-songs on SONOS is too fast (so the songs sound higher in pitch and end sooner) . And I have no idea how that can happen, or how to fix that.

Is this a known problem of Spotify on SONOS? And do you have any ideas how I can fix this? I tried looking through the messages on the forums, but no results.

Thanks in advance,
Rob