Well, there are some different possibilities. Is Pitch A mapped to the expression pedal? Could it be that the expression pedal is changing the value of Pitch A? Or do you have any MIDI controls that could be affecting its value? You might want to open up the preset in H9 Control and look at how it's saved. That will show you if it has any expression pedal mappings and also whether the preset was saved with the values you intended.
