Hi,
At this moment (tested Cubase 12.0.70), I get the “Missing Input 1” port only in following case:
- Add an Instrument Track.
- Add a MIDI Track.
- Disable the Instrument Track.
- Disable the MIDI Track.
- Re-enable the MIDI Track.
=> The MIDI Track shows the MIDI Port: Missing: Input 1.
From my point of view, this is correct, the MIDI Port (HALion Sonic SE) doesn’t exist anymore, because it has been disabled.
This issue:
is something different and I can still reproduce it (with a a bit different result since Cubase 12.0.70), as described here.