Curious. I don't really have the need to use LUT profiles. The monitor looks fine with matrix. I just did it for the heck of it. I DID use version 2 instead of version 4, if that matters. I did a direct comparison of an image with Preview and PSCC 2018 side by side. They looked identical, and in no way displeasing, to me. Of course, the profile was written with the Viewsonic Colorbration software, which is just a HW-lut enabled version of i1Profiler, and my i1Pro. Perhaps the problems are more prevalent with Basiccolor.
Lloyd