LR crashes while trying to select icc profile

What type of Mac is it?

Is this happening in the ColorSync part of the Print dialog box, not when selecting the profile in the Print Job panel in Lightroom Classic? If so, then this crash happens in the part of the Print dialog box that (I think) is not directly controlled by Lightroom Classic, but by macOS print code interacting with ColorSync, indicating that the problem is more likely to be in macOS.

My old computer is an Intel Mac and it is running macOS 13.4.1. If I do the same steps in Lightroom Classic 12.4 and select a profile I downloaded from Hahnemuhle, it works fine, no crash.

But there is another post in this community where a similar crash is reported, so I wonder if there is a specific system configuration where the crash happens, like if it happens only on Apple Silicon Macs. I know I said in that other thread that Apple fixed a print crashing bug in macOS 13.3, but that was related to clicking the Page Setup button, not selecting a profile in the ColorSync section. So if there is a crash related to that second problem, it looks like it would be different than the crash Apple fixed in macOS 13.3.

Because this profile action seems to crash on some Macs and not others, even when both Macs are running the same version of macOS and Lightroom Classic, the important thing now is to isolate what specific conditions make the crash happen. That will help Adobe narrow down where the problem is, and it’s why it will be good to know the specific Mac model where you are seeing the crash.

Have you checked whether any other ICC profiles cause LrC to crash?

Where did you obtain the profile? If Hahnemuhle can you share the profile or link to same in order that we can check whether the profile is corrupt?