I have the exact same issues with my H9 Max purchased new too! I just(yesterday) attempted the Barefoot button solution because I thought it was my boot sole that wasn’t activating the switches right. Nope. Switch is failing. I had the same grit feelling in them right out of the box…seems very suspect that we have had exatly the same problems. Also, most importantly I treat all my gear very well and none of it is ever abused or beat hard. It’s great the Eventide replacement switch is cheap…..but man help us out! $700 for a unit that can’t even handle that?? I think there hasn’t been a ton of these observations because people mostly run switchers and midi.