As title says - If the user has SQ1/SQ2/TRI set to the same MIDI channel on the NESizer and tries adjusting a MIDI CC parameter they all share (MIDI CC5 for glide, for example) it only affects SQ1 instead of applying to all related voices.
It's definitely not the end of the world, but it would be nice to have MIDI CCs apply to everything universally for instances when voices are stacked on the NESizer side.