Well, in addition to your reply. I ran the NHM some tests. Moving it
into various groups, reset the links between the devices to set up again
from the start and unfortunately this didn’t change anything except only
one light chimes and the rest don’t...
I’ve just picked up a google NHM, I’ve got two lights which are in
different rooms, they’ll play the chime noise. The other four in a
different room, will get the annoying response from the NHM. Just
doesn’t make sense why, some lights will play that...