I am also having issues with Studio One on an M1 Mac. After installing Midi guitar I don’t see the VST version in Studio one. I have copied the VST file to the VST folder. Rescanned plugins, and even restarted both Studio One and my Mac. I am able to use the Audio Unit version but only with the built-in sounds. I can’t get it to pass midi to any other VST’s. Previously I had this all working on Studio One 5 on windows, so I understand what needs to happen, it just doesn’t work.
