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GR-1 : aleatory bug with Pitch knob stuck at -49.9%

No clue how I generate this bug but from time to time, when I load a personal patch which used to be ok and when I want to modify the pitch with the pitch knob, the lock symbol appears (upper right corner) with -49.9% stated below... Turning the knob full left should normally unlock the pitch feature but it does nothing... The only way to unlock it is to go the Performance menu and set 'Potentiometers Setpoints' to OFF... Has anyone had this bug too ?


  • I have one since yesterday. Updated to the latest firmware. I can confirm. With me it’s about the same issue. Pitch always gets stuck with drasticly pitching up and/or down. Thanks for the fix/work around! My question is: is this supposed to be like this? If so, why? If not, why does it do this? Thanks people.
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