Unfortunately I've had issues with Sonos on all the apps including the stock ones. There was supposed to be a fix ages ago and I have a support ticket out for it but I've never got a answer 
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This was the last reply on the subject.
bobby@hubitat.com (Hubitat Support)
Oct 8, 10:42 AM EDT
Hi Steven,
Sorry for the troubles. The frame-work for this feature has been implemented on the back end, but has not been turned on for the front end, yet. It will be available in the next release. We are sorry for the confusion.
If you have any further questions about this or any other Hubitat Elevation features, please don't hesitate to respond to this email.
Best regards,
Bobby
Customer Support Services
Hubitat Inc.
I did chase it up as there has never been any mention of it being fixed/ turned on in the release notes, but not had a reply.
