I see similar things.
Group works perfect: it catches the temperature of the Hue sensor now as main capability.
However, the Vthermo does pick up the temperature of the Hue sensor, but not the right value. Sensor is 25.8C and the Vthermo sees it as 26.20C in the same zone if the sensor is the only temperature sensor.
When I add the Temperature Sensor Group showing 25.8C to the same zone as the sensor and the Vthermo, then the Vthermo jumps to 25.8C
Perhaps @balmli or @Jamie know better how this works
