Hi -
I'm "attempting" to baseline the volume level of multiple Sonos speakers using the HE built-in integration.
When setting the value using the "Control Music Player" and then "set volume" for 2 speakers, RM 5.1 shows a "null" next to the speaker names in Actions afterwards.
See:
I deleted the previous rule that might have had some "issues" and started w/ a brand new rule.