Running the MSY2 on midi power or external power? As far as I know, the Octatrack does not provide enough power for the MSY2 via midi (Machinedrum does though!).

If running on external power, is the Octatrack configured to send midi clock?

Are you using the correct power for the MSY2? DC 7-12V out, with the correct polarity?

Does the MSY2 work with another midi clock provider, ie some other sequencer providing midi clock?