Thermostat Card has missing "°C / °F"

[idominiki]

Describe the bug For me, the Thermostat doesn't show "°C / °F". Has anyone else this behavior?

Example code:

- type: "custom:button-card"
    template: card_thermostat
    entity: climate.badezimmer
    variables:
      ulm_card_thermostat_name: Raumthermostat
      ulm_card_thermostat_enable_collapse: true
      ulm_card_thermostat_enable_controls: true
      ulm_card_thermostat_enable_hvac_modes: true
      ulm_card_thermostat_enable_background_color: true
      ulm_card_thermostat_enable_popup: true