I run up against this often. I'll have a MIDI part in Logic X and I want to record it acoustically. I want to read the score while I record. It seems I have to drag the Main window down to see the notes because this doesn't work all in the Main Window. (It might, but I don't know how to do it) If I unhighlight the catch, it won't update. If I click on the Audio to record, the notes disappear.