This has happened to me twice.
Once with the demo, but it kind of went away and then I installed the full version. It was fine when I was using it, then I was showing it to my friend and it began acting up again, then it’s fine. Kind of strange.
For me, it was doing it in maybe not all modes, but at least chord and note delay.
It just kind of starts turning itself slowing increasing in value on some knobs. It seems like it’s different knobs each time. I guess if it does it again I’ll replace the displays.