Vibration not working (in LMU at least)

Hi,
It seems that these Fanatec vibration adjustments for steering wheels (Fanalab) are not working, or at least I can't make it work.
I'm referring specifically to "Wheel Lock Vibration" and "Wheel Spin Vibration".
The steering wheel vibration master switch is "On".
They look very promising feedback features for every car category.
Can anybody tell me if they work for them?
Thank you.
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Wheelbase: CSL DD Pro 8nm
Steering wheel: Clubsport Formula V2
Drivers: Everything in its latest version.