Hi! I’m bumping this as I have the same problem. Did anyone find a solution? I submitted a support ticket. It’s just so unpredictable! Sometimes those keys will work after 5 minutes, sometimes they’ll work after I bang on them, or tilt or jiggle the synth. But, we need to rely on these keys working every time! I was hoping to take this on tour with me in April but I’m hesitant to trust it on the road!