Using Matter Control. I can use the manual axis controls fine. But . . . "Home" does not work in the Z axis, in that, it only moves upward, each time I click "home". That is not normal, is it? Another issue is that filament feed does not respond to Extract, or Extrude. No sound or vibration at all. It does seem to heat the bed and extruder although I did not let it approach the set point, I was content to feel them getting warm at this stage.