sorry for being so late on this, but just now I got a full Kontakt license. So I can reproduce this digital noise, but to me it only happens on the very first time loading a project that utilizes Kontakt. Any project loading thereafter it is silent. I have to restart my Mac to get it back (for only 1 time). How is that with you, you get the noise on every project loading?
Furthermore, I get the noise only with the Built-in Audio device. Using my UR22, all is silent again. How is that with you, what audio device do you use?
A bit OT but had the same for years when using Wallander Instruments (not Noteperformer) in Sibelius and never managed to find out why. (did ask the developer) Got a habit of turning off the speakers each time before starting Sibelius.
It’s basically a matter of letting the audio engine only start producing audio, when really everything is initialized. If Wallander knows the issue, then it should be quite easy to fix it, as they know their code and the initialization procedure. To me it seems more that they don’t regard this issue serious enough…