Sorry if this question is answered somewhere. I checked online and in the manual and spent a few hours on the keyboard and could not figure it out

When I select a KeyboardSet (sound) from any of the internal PA5x sounds, I can select and play any Lower Sound and it works totally fine with proper velocity characteristics (little pressure, lower sound... more pressure, louder volume). However, I've loaded a KST file that has some user sounds. When I select any KeyboardSet from this KST, the Lower Sound is not working unless I apply a lot of pressure.
I tried even selecting an internal sound, going to settings and LOCKing LOWER SOUND. When I do that, the sound itself gets locked but the velocity settings change again.
The only work around that I've found is if I select an internal KeyboardSet and then manually select Upper 1, 2, and 3... But this is a lot of work as there are hundreds of sounds.
Any support will be greatly appreciated!!