Notes not triggering, notes sustaining when they shouldn't

Question

I'm getting weird MIDI behaviour in Logic (8). It's hooked up via USB. Some notes hold, as if the sustain pedal is on, and other notes don't trigger at all. It's a different region or set of notes every time and I have checked the polarity of the sustain pedal and looked down to see if my foot is stuck to the thing, but no...
Anyone any ideas?

Answer 1

Hi
Could it be the "ghost notes" issue? That being duplicate notes "hiding" underneath the visible notes that sometimes screw up (cancel out) the note ons and/or note offs. A Select All command selects the ghost notes too, so it become difficult to find them.
Track down the notes that are troublesome and then, with the piano roll, select the troublesome notes with a single click, not by rubber banding them to select nor by selecting via clicking the kybd on the left side of the piano roll (both methods will select the ghost notes too), and them delete or transpose them to see if there are these ghost notes (duplicates) in those positions.
I've had this happen to me and so have a few others.
Cheers.
on edit:
Table of MIDI Controller Numbers
http://www.indiana.edu/~emusic/cntrlnumb.html
Message was edited by: Bee Bee