Your midi config (from the screenshot) seems off:
OSC:4,5
creates a midi target named OSC connected to input number 4 and output number 5. In the device list (still from the screenshot), output number 5 is OSC (the port you created), so that's not gonna work. What probably happened is that the midi device list changed and the configuration that once worked doesn't now. You have two solutions:
- update the port numbers in the midi config to match the new port numbers (this might fail again later for the same reason)
- use strings instead of numbers to choose the ports, this way you can select port by name (it won't be a problem if the port number changes later)
"OSC:input port name,output port name"
The double quotes are mandatory if port names contain spaces. You don't need to write the full name of the port, the first port that contains provided string in its name will be selected.
Reference: MIDI configuration - Open Stage Control
Edit: the port named OSC
was created with loopMidi actually, as shown in screenshots below. solution -> Stopped working! - #12 by jean-emmanuel