But after the notes are recorded, whether on 100% or 1% velocity in the editor, the volume doesn’t change.

I mapped a knob on my midi keyboard to volume in Analog Lab and that works when recording (the knob controls the volume as I record). If I take a track with Presence on it that works correctly and add Analog IV, Analog IV does not work correctly, even when using the midi that did work. I also use Superior Drummer and that also works correctly. The software in Studio One, like Presence, does work right regarding changing the velocity of notes. I have 2 Akai keyboards and a nectar and the result is the same using all of them. In the editor, if I select a note (or all) and set the velocity to 1%, the volume doesn’t change from that at 100%. I cannot edit the notes’ volume/velocity. When I create a midi, either by playing a midi key board or creating the notes by hand (with the mouse). The Arturia Analog Lab IV software has never worked as expected (I tried them and didn’t get any help).

I’ve been using Studio One 5 for about 5 years.

Analoglab 5