Routine with Sonos device not working

I have a routine that used to work, but now fails with "something went wrong" when trying to execute via SimpleCommands. Basically, the routine sets the volume on a Sonos Amp, then plays whatever is selected on the Sonos. I've tried with other Sonos components, but no luck. I can control the Sonos devices via SimpleCommands by selecting the device itself, but no joy with the routine. I've also tried disabling and reenabling Sonos in SC.

The use case for this is to start holiday music at a certain time, then stop it later.  I used to schedule the routine (scene) in Alexa, which worked last Christmas, but not this year. Any help would be greatly appreciated! Thanks!