rpm attribute problem?

Hi.

I think there is a rpm problem in the wholehog3.

The rpm parameter just can adjust one side by Parameter Wheel.
for example:
The Gobo parameter switch to spin adjust mode, the value range is from -300rpm to 300rpm. now, it can only adjust from 0 to 300rpm using Parameter Wheel, the other side value -300 to 0 can't assign to.

Is that a bug ?
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