I have 1 bulb and 2 lamps connected on Yeelight, and only the bulb seems
to work with google home. Those 2 lamps just didn't appear after
connecting those 2 apps.
After checking all the things you have mentioned, i somehow managed to
connect my lamps through the Mi Home app, i guess the connection between
Yeelight and Google Home is disabled in certain cases.Thanks for the
help though!