Blending Modes not behaving as expected
Hi all,
I'm using a MacPro 2019 running macOS Ventura 13.5.2 and I've recently installed the 2024 version of Illustrator and am now having issues with blending modes.
In all six images below I have the same greyscale picture overlaid on a cyan block. The only difference with each pic is the blending mode applied to the image. Multiply is the only one behaving as I would expect it to. Lighten and Screen just make the image and colour block disappear!

Document is in CMYK mode.
Is there a setting that's changed in the update that I don't know about? Or am I just doing something stupid?!
Thanks in advance 🙂
