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Sustain Pedal Suddenly Stopped Working (Help!)

After coming back from a trip, I fired up logic to start back in on my current project. But when I went to start recording in more piano, my sustain pedal wasn’t working. I did not assign the pedal to anything, or change a single thing since I had left 3 days ago. I have never had this problem before. My midi keyboard is a Komplete Kontrol S49

i have:

  • Checked to see if the pedal itself is broken, it is not
  • powered everything down and unplugged, didn’t help
  • opened older projects and brand new projects but found the same problem
  • I have checked Logic Pro x> Controller surfaces> controller assignments >. But nothing is assigned to the pedal.
  • I have checked in midi settings but nothing showing why sustain pedal shouldn’t be responsive.


Again, I’ve been using this setup for years and never had a problem. I just opened everything up as usual and suddenly no sustain.


please help! I’m up against deadlines and can’t record anything :(

Posted on Aug 25, 2020 9:17 PM

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Posted on Aug 26, 2020 12:04 PM

After selecting Bypass All Control Surfaces, quit Logic and reboot the computer.

Also, unplug the sustain pedal then shut your keyboard off, plug the pedal back in then power on the keyboard.

What keyboard is it?

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5 replies

Aug 26, 2020 4:03 AM in response to aarob81

Pretty sure it's a control surface problem. Are you using a custom control surface setup ? If not go to the upper left Logic Pro X Menu, to Control Surfaces and select Rebuild Defaults or Bypass all Control Surfaces. If yours is a custom CS setup check out setup, preferences and settings. Logic occasionally switches control surfaces or make an error in assigning a CS.

Sustain Pedal Suddenly Stopped Working (Help!)

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