Likewise the most regular response I get is the glitch one. Also an
increasing number of times speakers in other rooms are then picking up
that instruction. Two pairs of Nest Audio speakers I have in main rooms
for stereo stopped pairing months ago. ...
I've had no success either but if you ask Google to "pause", then ask to
change the volume to (up/down, number or %), then ask it to 'play' it
does get around the need to get up and do it manually... Three steps
instead of one sadly..