A few weeks ago, my two Honeywell TCC 9000 thermostats stopped having the ability to control set points in ST. I found on reddit that others had the same issue, and had to remove and re-add them (via cloud connection to TCC again). THis fixed the issue in ST, but then resulted in the thermostats being identified as "placeholder" for type in AT.
I went into the IDE, changed the type to what it was before, and now I can use them. However, there is no Dual Control tile like before that allowed for heat/cool control in a single tile. I have to add seperate heat and cool tiles now.
Customer support service by UserEcho