Nest Thermostat removed from App

[RJF]

Has anyone experienced the thermostat being removed from the nest app after its been installed? For some reason the thermostat has been removed from my nest app & I’m struggling to reinstall the product as the 2 appear to be conflicting ie thermostat not showing on app but when I follow instructions  to add a product, the thermostat thinks it’s already set up so unable to retrieve information I need to get set back up on the app?! 

[johnCNA]

The most usual cause of this is having more than one Google account and registering the Nest originally under one account but using another account later.

[Data4sale]

Having the same issue and mine was never migrated to google. It logged me out, told me my password was incorrect (it wasn’t) had a big “migrate to google” option and a tiny link at the bottom to reset password with nest. I did and when I logged in my thermostats were gone. Now I have reset them and add them again. Convinced it’s a heavy handed attempt to make me use google home.