To troubleshoot, create a simple gig file and:
- try with another keyboard
- try that gig file on another computer with the same keyboard
- try with different cables
- try without hubs (if using any)
Bottom keyboard sending midi but not getting to rackspaces
Create a screenshot of the Global MIDI monitor.
Then after a MIDI In block insert a local MIDI monitor to see what happens.
I suspect that your keyboard or computer port is the culprit.