a) CC messages are in the menu tree, but ∗not∗ implemented in the code. It's not a "bug", it's a feature that is/was not implemented.
b) external 'analog clock' (not MIDI clock) to synch the arpeggiators is flakey. It seems to work OK at lower speeds, say < 4Hz. MIDI clock is fine.
If anyone wishes a refund, just return the unit and I'll write a check. My expectations for Jeffrey fixing this is low.
Paul S.