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Logic Pro X: One MIDI note won't play

I am having a strange problem with Logic Pro X. I use a Yamaha CP33 as my main MIDI keyboard, connected by USB. In the past couple weeks, a strange problem has emerged - one of the notes from the keyboard, the B-2, to be specific, just doesn't trigger. At first I thought the key was broken, but it's okay, because:

- all keys work fine when I use the keyboard's analog audio output

- all keys work fine in MainStage

- the non-functional key moves up and down if I choose to transpose the notes on the keyboard.

So I have concluded that it's a software issue specific to Logic. I have already tried reinstalling the Yamaha USB MIDI driver, it didn't help. Could it be some obscure setting in Logic that is messing things up? What do you suggest can I do to fix this?

Logic Pro X, OS X Mavericks (10.9.1)

Posted on Feb 3, 2014 7:26 AM

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Posted on Nov 2, 2017 4:13 AM

Choose Logic Pro X > Control Surfaces > Bypass All Control Surfaces.

7 replies

Nov 2, 2017 3:19 AM in response to di pap

How did you fix it? I've tried looking in Preferences- Controller Assignments and Preferences-Key commands, and can't see any reason why my G sharp won't play. I've tried different controllers and have the same outcome so it must be a problem within Logic. In desperation I reset all my assignments and still the problem remains. Incredibly frustrating!

Logic Pro X: One MIDI note won't play

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