I have BIAB 2019.

I have a song. It has an organ. I want a piano.

I put the mixer on mixer (?) The organ slot says organ. I hit the arrow on the right which brings up a menu that changes the patch. No matter what I select, the patch doesn't change, i.e. I still hear organ. I hit F4, generate, the patch doesn't change.

I do the same with the "Patches" tab on the Mixer. Same menu. Same result.

I do the same with the Organ tab along the top. Same menu. Same result.

1. Why are there 3 ways to

a. reach the same menu to change the patch
b. that don't change the patch?

2. How do I change the patch?