Triggering changes on Nano Cortex with HX Stomp - not working

I am trying to trigger preset changes on my Nano Cortex from my HX Stomp XL.

I’ve wired up a MIDI 5-pin to TRS cable using the pin assignments in the Neural DSP Nano Cortex MIDI Manual, and tested with the continuity setting on my multimeter.

Leaving MIDI channel at 1 on the Nano Cortex and EXP/MIDI set to MIDI.

On the HX Stomp, I’m thinking it should be set like this, but not working:
In Command Center, setting up Instant 1…
Command: BankPC
MIDI Channel: 1
Bank CC00: Off
Bank CC32: Off
Program: 3 (I’m trying to switch to the fourth preset in my list)
Wait Time: 0 ms

I save it with the HX Stomp preset, change to a different preset and back to the Stomp preset I’m working with but no change. I’ve tried to do the same thing with a footswitch to just trigger a change with the switch, but again, nothing happening on the Nano Cortex. Any ideas?