Python-rtmidi not found (or wrong version) (running with python 3.7.0) Error

[jean-emmanuel]

It seems the open stage control part is ok, I can't help much with the rtpmidi part unfortunately, but I suggest you read this thread:

Commands not acting properly all of the sudden

Why run open stage control on a different computer ? You could run it on the system that runs your DAW and avoid sending midi through the network. On mac you can create virtual midi ports directly in open stage control (name:virtual instead of name:3,3 for example), this would simplify your setup as well.