Some of the tracks of the live looper have this noise, when the volume faders are moved a bit faster. It seems like this only happens on the live looper and only on some tracks there, I didn’t really notice a pattern of where it happens. But if I loop something like a pad of sound and I want to play with it rhythmically with the faders, then this noise is quite disturbing.
On another note, and this happens also just on the looper in my experience: The solo and mute buttons are quite clicky. So same thing, if I want to use them in a musical way in a live performance, the clicks are not really a nice effect…