Leandro Gardini wrote:
Sometimes I glue some midi regions which cause two channels for the same CC (CC1 ch.1 and CC1 ch.2).
How can I prevent Logic from creating more than one channel for each CC?
Glueing MIDI regions only merges the MIDI data contained within different regions into one single region. The act of joining in itself does not create channels for different CCs, nor does it changes the MIDI channels of any of the MIDI events contained within the regions you're joining.
So something else must be at play if that's what you're experiencing. Can you give us an exact set of steps to reproduce your issue?