Repro:
Set multiple tracks to “Not Connected”
Select all of these tracks.
Set them to “All Midi inputs”
Only first track takes instruction
Z
Repro:
Set multiple tracks to “Not Connected”
Select all of these tracks.
Set them to “All Midi inputs”
Only first track takes instruction
Z
Not a bug.
That’s how it works, of course, unless you hold alt/opt-shift.