The device would have to report a thermostatSetpoint for the single-height layout to work when the device is in Auto mode. It’s possible that something changed with the device itself (eg. part of the groovy cutover)
There’s a bunch of logic in the single-height layout to try to determine a setpoint, but when the mode is auto and the thermostat is idle, there’s not a great way to guess if it should display the heating or cooling setpoint.
That’s why it’s preferred that a device either implements the thermostatSetpoint, so it can expressly indicate what it wants to display… or the double height needs to be used.
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Also keep in mind that the current temperature is displayed in the footer. The main content is the setpoint