In C13 Pro:
- Add 2 MIDI tracks: 1st track MIDI channel 1, 2nd track MIDI channel 2;
- Select both the tracks;
- In the Inspector → MIDI Output Routing: SHIFT+Alt+select a different MIDI device (it’s the key modifier to set all the selected tracks to the same MIDI Output).
Result: both MIDI channels are now set to MIDI channel 1 → BAD!
In previous Cubase versions that worked the right way.