The spinning numbers indicate you are in Play mode, not Articulation mode. The “1. 8” indicates the positron of the last two knobs, Octave Near and Octave Far. The 8 tells us that the last knob, Octave Far, is turned to the right, not the left. All knobs must be full left when powered on to enter Articulation Mode.
If you tell me “But the last knob IS full left!”, then I will say “Extraordinary! It is behaving backwards! Turn it until the display shows ‘1. 1’, then power of then on. Now at last you should be in Articulation Mode. “