What audio driver are you using in/for Sibelius (could be a Kontakt Player setting also)? I believe on Windows you want to use ASIO4ALL. However, I'm several years now removed from the latest happenings on Windows machines, so ASIO4ALL may not be the best thing to use these days.
« Reply #1 on: August 29, 2018, 03:13:07 PM »