Problem when switching between Spotify Connect devices

[glenster2000]

Plan

Premium

Country

UK

Device

(Sonos One, Alexa)

Hi. When playing music on one device (Sonos Connect or phone), then switching to another (Sonos One), I can see in the Spotify app that Spotify Connect has switched to the new speakers and it shows music as playing, but there is 30 seconds of silence.  Then (if not using shuffle), it skips to playing the next track in the queue on the speakers, however the app shows the 'now playing' song as being the track after that one.  So the track that's shown in the app as playing, isn't the one that's coming out of the speakers.  This happens for either of the following:

1. Using the Spotify app to change the device to Sonos One speakers that are in a group
2. Using Alexa to move the music to the Sonos One speakers (not in a group)

If the Sonos One speakers aren't in a group and I use Spotify app to change device then it works fine.

This has been going on for quite a while, so any help would be appreciated.