Karen of San Jose

When I turn on or off using the physical switch, after a few second, it will turn itself back off or on. This started when I added simple commands to my Apple Watch, so I removed insteon from simple commands but it doesn’t fix anything. I changed insteon account password in case I have other app linked to insteon. Didn’t change anything. If I keep turning the switch back on or off after it reverse itself, after doing that a few times, it will eventually stop reversing itself. And I have to start over when I want to turn off or on again. If I use the app to control the switch, it works and the switch state stay put and wont reverse. It have been a few months and I don’t know how to debug or fit it. My sister won’t use the light switch anymore. I would really like some idea to fix this thanks Karen