Media node AV Receiver On/Off trait and voice command

[yafm]

I checked to see if this was discussed previously but didn't see any topics on it. In node-red, I was testing a media node, configured for AV receiver, and with On/Off trait checked. First, I tried using the Google Home app to switch this device off and on and check the results with a debug node: I am able to get the On/Off trait to work from the Google Home app. However, I am unable to get it to work with a voice command: if I say "switch off Denon" then assistant replies with "Sorry, it looks like that device hasn't been set up yet.
You can do that in Assistant settings."

However, using the voice command, I am able to get muting to work with "hey google mute denon". So the device has been setup, perhaps partially, which is strange. Wondering if anyone else has got the On/Off trait to work for the media node configured for AV receiver using a voice command?

[yafm]

never mind. Google's on off trait only supports the utterance "hey google turn off denon", i.e. "turn off..." not "switch off ..."