My Sonos Play 5 (2nd Gen) keeps stopping when I run spotify

I've tried different configurations, every time I run Spotify on the Play 5, it stops and I have to turn the play button back on.

But this only happens when I run the Play 5 standalone.

With the playbar, the sub and two Sonos 3 it works wonderfully.

I conclude that it is a Sonos 5 problem (and not Spotify)

Dear Sonos team, is there a solution in sight?

************ Diagnose

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