Every second G-note is missed by Logic Express

Question

Hi,
I have really strange problem: logic express misses every second G-note (two octaves down from middle-C) that I press from MIDI-keyboard. It also misses all G-notes if I press something before the G-note.
This is not a keyboard problem: I have found same issue with two different keyboards and three different USB-midi-inputs. Neither it's hardware problem, I can switch octave from keyboard and it still happends. When I try "test midi" from OS X, I hear every note coming in to my mac, but every second G-note is missed by Logic. It's clearly something inside Logic Express since OS X receives the notes from keyboards all the time.
I have newest update for Logic Express and all OS X updates up to date.
Any ideas?

Answer 1

Hi there,
Just to make sure, download this:
http://www.snoize.com/MIDIMonitor/
Then check on the keyboard to make sure that it's producing what you expect.
Next, have you reassigned that key to a Logic Express key command? Or perhaps to another programme somewhere?
You could always try reseting the key commands, assuming you haven't set up lots of custom ones.
Open up the Environment (Command-8) and look at the the Clicks and Ports layer. There's a diagnostic tool in there that shows you what notes are coming in to Logic. That doesn't necessarily means what notes are going to the sequencer since you can filter notes out in the environment.
I'd also have a look at the Transform Window to see whether there's something wrong in that.
Sorry not to give you detailed instructions for all of these different actions - this post would be pages long so have a look in the manual and see if you can't figure out some of these advanced functions.
Pete