The MIDI PC feature of BIAS FX only works on MIDI tracks in Logic Pro and most of the DAWs,
If you want to make automations for program changes in Logic Pro, please follow the steps below:
1.Load BIAS FX as a MIDI-Controlled effect from an instrument slot of a software instrument channel strip, and take audio from the side-chain input, please refer to the link below:
How to Use MIDI Track + MIDI Controller to Change Presets in Logic Pro ?
2.For PC automations on a MIDI track, please refer to the video below