Hello! I have a Helix LT, updated to latest version, 2.21 and I'm using it to send MIDI notes to my Sub 37. I've set them up in the Command Center and it works well most of the time. I've got the display set in Stomp mode so I can see the Notes each button is programmed to. These icons light up when depressed, and go dark when I lift off. However, sometimes throughout the night, they get stuck "on" . and clicking on them has no effect. I have to changes presets back and forth to get these to reset properly.