I recently started using the thermostat cards and have had zero issues over the past few days. For some unknown reason, one of my three thermostats suddenly started reporting a target_temp_low attribute, and now I get two sliders on that thermostat card. If I go to the developer tools and set the target_temp_low attribute to null, as it is on the other thermostats, it goes back to a single slider. This works for a period of time, and then the attribute is refreshed, and the problem reappears. Unfortunately, trying to set this attribute to null via a script or automation generates an error complaining that the new value is not a float.
My understanding is that the two sliders should not show up unless the unit is in heat_cool mode. All three of mine are in cool mode. Any ideas on preventing this from happening?
Thanks!