Thanks for the assistance. The following resolved my issue:
– Unplug the USB cables from the pedal
– Delete the pedals in the Mac OS AudioMIDI Setup
– reconnect the pedals via USB
– relaunch H9 Control
Initially, after removing the pedals from AudioMIDI setup and plugging them back in, I got a communication error in H9 Control. But quitting and relaunching H9 Control resolved it.
Much appreciated!