I made this discovery last night.   I have been moving an H9 from a large pedal board with a MIDI controller to a small pedal board without a MIDI controller.   On the large pedal board I set up the controller to send a MIDI clock to the H9 (to set tempo).   Last night, while using the small pedal board I was surprised (and caught off guard) when I wasn’t unable to set the tempo by tapping the right footswitch on the H9.  Now, I know why, I need to change the MIDI setting to enable the Tap footswitch.    But, I’ve already ordered another H9 for the small pedal board so I won’t have to constantly yank an H9 on and off a pedal board couple times a week.