Hammond B-3X Chorus/Vibrato question

Sorry if I haven’t explained it correctly. I have mapped a widget in my rack to the Vibrato and Chorus parameter in B-3X. Moving the widget is moving the V/C knob in B-3X as expected. The V/C button on the Nord is mapped to the widget. Subsequent button selects on the Nord show the widget AND the V/C knob in B-3X responding. The issue I’m experiencing is that when I select C3 on the Nord, the B-3X is switching to V1. To select C3 in B-3X requires me to select the V3 setting on the Nord via the button select. Looking at the V/C knob in B-3X, it looks like the state of the V/C button on the Nord is always one “step” back in what position the V/C knob is set at in B-3X. I hope this explains my issue a little better… I know that I must be missing some step in this process.