The Korg connection to the PS app is causing issues as keyboard note presses are not captured correctly causing the app to see the notes as early or late. The app designers suggest that some midi settings may be the problem and I have tried some of their suggestions and am waiting their response to my concern.
Just wondered if anyone else uses this app and has found a solution?

Just found that the Korg USB driver for Mac is not suitable for use with Mac Ventura - wonder whether an updated USB driver will solve the problem when available??