@Christoph-Hart Aaah that did the trick indeed. That's odd though, I've noticed the warning icon before, but thought it was a glitch or something because the ranges of the mid-knobs are correct :
54e20c74-caba-4e8e-927b-e43b3c3b529a-image.png
474b3c10-8915-4f16-b400-d97b720b0e18-image.png
So in the end it was me who was the buggy thing... Thanks for the debug session :)