Wow. That worked. I have my son's old Pixel 2 that I use for listening
to music. Added the app there and re-setup the thermostat with no
problem on the original thermostats Home. Thanks!!
Having the same problem here. Tried this idea to no avail. I can't
believe this could be a problem affecting this many users and there's no
support update?? Very frustrated that I just dropped $ on the 2nd
thermostat!!