Everything works (I've got a smart plug), but light nope.
I've tried to say:
"Turn on everything" - the result was turned on only my smart plug.
"Turn on lights" the result was "Looks like those lines have not been set up yet..." - However you saw the screenshot that light I've set up everything, and Google home app see the light.
"Turn on the bedroom light" - the result was "sorry I can't help with that yet"
Additionally, if I say sync devices, Google home says "syncing tp-link kasa devices" - but no yeelight .