Fibaro smart implant - Multiple external Temeratur Sensor DS18S20

I try to use 3 external Temperatur probes DS18S20.
If 1 set 1 external Sensor it works perfect
If 1 set 2 external Sensors I get 1 Temp Sensor and 1 Humidity Sensor (Not working)
If 1 set 3 external Sensors I get 2 Temp Sensor and 1 Humidity Sensor (Nor working)

Is there a bug in the driver ?

Did you ever resolve this issue? I am having same issue driving me nuts. Thanks