Hi Brice-
Your thermostat likely doesn’t report a general thermostatSetpoint value when it’s operating in Auto mode.
You can change to the Double Height Thermostat Layout which displays the individual heating and cooling setpoints separately. The Double Height Thermostat Layout works well with thermostats like this which don’t report a general thermostat setpoint value and instead only reports the individual heating and cooling setpoints.
Here’s a few relevant discussions with more details: