Hello. I’ve run into a problem with a stator-rotor assembly I found online. I’ve assigned a rotational speed of 300 radians per second to the rotor, but during the fluid flow simulation, the rotor doesn't even attempt to spin. I’d appreciate any information you can provide. I created a separate rotation zone that extends 0.1 mm beyond the rotor boundaries without touching other components; the parts are unconstrained (not fixed), and the mates are set up correctly. The flow isn't swirling, and the rotor remains stationary.