Does it not work for you in 10.15? I normally don't use it, but just launched 2.2.3 to try (after two years since last try) to print a target (for profiling/characterization) from PSP. I launched it from Lightroom, and it seems to behave like normal. Including still not working for printing targets, as it's still way off in output compared to ACPU and ColorSync, confirmed with OEM profile expectations. No biggie for me, was just curios. Staying with ACPU. Target printing is not normal use for PSP.