I have connected some light bulbs to my tapo app and then linked this app in google home. I only have 1 bedroom light physically, but google home thinks there are two. Google also says they are disconnected and wont operate them. I have tried disconnecting/reconnecting the bulb on the tapo app and re-linking tapo with google home, neither seems to work.
On the tapo app itself, everything is working as it should be and displays the correct amount of lights.
Sorry to hear about the trouble. I wanted to follow up and see if I could be of any help. I found an article with some troubleshooting steps. Please let me know if you are still having any trouble from here, as I would be happy to take a closer look and assist you further.