Thanks for that info. Sure enough, when I got into the “Sleep comfortably” routine under “Temperature Control,” it shows no supported devices.
Pretty frustrating, since all I want ST to do is to take action when the thermostat’s temp gets to a certain point, which is readily displayed when I access the thermometer via ST.
Finally got it to work! Based on posts from around 2020 in this forum specifically about my thermostat, I downloaded and installed an earlier version of ST (1.7.43-22). Everything after that went fine and all has tested OK.
Since I wanted ST solely for the one function of starting a ceiling fan when the room reaches a particular temperature, I’m fine w/ this earlier version.