Originally Posted by jazzutako
................................................
And I'm started thinking it's not the swirl but there's something going on during the rendering process,
because I don't really hear the noise when editing and playing.
The noise appears after rendering.
..............................................
Jazzutako

If you don't have the Realtek Audio Console you might want to get it.
https://realtekaudioconsole.com/
There may be something there that can help you.
Note that I do not have any experience with it-----yet. I am going to DL myself and take a look at it.

When you are at the checkout line and they ask if you found everything say "Why, are you hiding stuff?"

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware