Ok! Today I know for sure that is not a hardware issue. I installed SPAD.NEXT on another computer and the knob works just fine! So at least I don´t have to send the device to the Logitech tech support.
After seeing this reply on the other thread:
I realized that my AP panel was working fine til I started using the new Alpha Yoke… So I am pretty sure that is something related with the new driver of Honeycomb…