Hello!
When I change my document ICC color profile from RGB to any CMYK, split color does not work as expected anymore. In rgb, the colors are clearly influenced by both slides. However when converting the document to CMYK, the whole image gets darker and cannot be changed by the sliders anymore. The only option there is having both sliders on zero: no change or one slider a little bit: darker image.
I tried this with an image from the internet and there I did not have the issue, so I included the project and a video of the problem. I had this problem with generic CMYK ICC profile, however there is a specific color profile which I would like to use which is also attached.
A different problem is when using this attached color profile, there is quite a big difference in soft proof and the result of converting the document.
MacOS 13.4 (22F62), M1 Macbook, Affinity Photo 2.0.4
Thanks for reading, I hope someone is able to help.
Schermopname 2023-05-15 om 11.48.24.mov
test.afphoto ISOcoated_v2_300_eci.icc