Wrong ZWave Multisensor value in the group title bar

[couture999]

I have an Aeotec multisensor 6 in HG-r525 running on RPi3. On the group title bar we can see three values : Temperature, Luminance and Humidity. Luminance value is always zero.

For example, in the sensor widget the luminance shows 31 but in the title bar it is 0.