I am now on the newest release of node-sonos and there the Id includes a leading "s".
My previous "modification" accidentally was based on an old version, distributed with node-red-contrib-better-sonos. In that release the Id works without leading "s".
I am now on the newest release of node-sonos and there the Id includes a leading "s". My previous "modification" accidentally was based on an old version, distributed with node-red-contrib-better-sonos. In that release the Id works without leading "s".
Sorry for the inconvenience.