Hello,
I'm using Ps 2020 21.2.2, iMac 27" 2019 running OS 10.14.6 (Mojave) and 10.15.6 (Catalina).
I've created BW ICC profiles using X-Rite i1 Studio (ICC v 2).
When using Lr 3.4 or LrC 9.4 to Soft Proof, all of these profiles (correctly) change the screen appearance of RGB images to a BW version, differing by the "Style" of each profile (Cold Tone, High Contrast, Sepia, Standard, "None").
When softproofing in Photoshop, the screen image does not change to a BW appearance for any of these profiles. They affect the color RGB appearance of the images slightly in ways that are visible but irrelevent and useless. The BW "conversion" is not reflected in the Soft Proof process.
The problem exists whether I'm booted into macOS Mojave or Catalina.
How can I get BW ICC profiles to work correctly in the Ps Soft Proof process?
(BTW, my copy of Ps CS6 exhibits the same problem).
Rich