P: Crashes on applying color lookup adjustment layer

Persistent of you to find them. I finally found the Mac equivalent. It's our System Library> Application Support> Adobe> Color Profiles. Both the Device Link and the Abstract .icc profiles are in it in one list. As you pointed out, the list isn't identical. It's possible, though, that some of the names are the filenames, while the preset is called something else, one file stands for more than one preset, or those HDR and P3D profiles are used  somewhere else.

They aren't making it easy on us, are they? <BG>

So now you get to crash your system testing this? LOL

Most of these are in here too, just not all of the ones you showed...
c:\Program Files (x86)\Common Files\Adobe\Color Profiles\

I threw everyting I had into a new folder, to see what it would recognize...
c:\Windows\System32\spool\drivers\color\Photoshop Color Lookup\

I seem to have less than you, but it works (maybe a correct install of 2020 adds some new ones).  Some may not belong to Adobe, not sure...

Thanks 🙂  I mostly do very basic "3-liner" scripts, but even these can make things way cool.
I think I found a solution through this thread. I see I still have the Abstract files in my old install, so now gonna copy them over and see...
https://community.adobe.com/t5/photoshop/photoshop-2018-color-lookup-abstract-profiles-blacklight-et...

Since you appear to do scripting, I wouldn't be at all surprised if you did better than I at finding these things. Good luck with it.

If you uninstall, the Creative Cloud app asks if you want to keep Preferences. You can say no at that point and that should be all you need to do. Don't say yes to migrating anything if it asks if you want to after you reinstall. The new Creative Cloud app is much more open about this feature—it used to hide everything important from users during the uninstall/reinstall process.

To trash Preferences without uninstalling, on a Mac with PS not running, press Cmd-Opt-Shift and click on the app icon. That should be Ctrl-Alt-Shift and click the icon to launch it on Windows—if it's the same kbsc. The link I put in probably has the right kbsc.  '-}

I don't know how to turn off PS taking over preferences (or trying to import everything), so that could be a good tip. Just not in my case, I think, cos I had to reinstall Win 7 a few months ago. Meaning, it seems neither PS 2017 up to 2020 is doing this right -- these are missing everywhere for me, and a search on one of those names doesn't turn anything up. These may sit in some Common folder somewhere though... May try and look.

The only "fix" I can think of would be to a) remove Preferences, making sure you're covered (https://helpx.adobe.com/photoshop/using/preferences.html, and if that fails, b) uninstall and reinstall, since it appears there's a problem with everything getting installed in good working order. I can't think of any other reason. Adobe Staff might have a better idea, although generally speaking, these procedures aren't too awful to run through.

But if both of these efforts fail, it's really up to someone who knows the code pretty well or has come across this before. Looking in the Package Contents on my Mac, I don't see anything about these presets—others, sure. I don't have the expertise to identify all the files in the multitude of folders that are all over the hard drive, but nothing obvious is showing up in any I know to look at.

I really don't know if it could be a Win 7 problem. But it was fully supported, as I recall, in 2017. Have you been carrying your preferences forward? Because if you have, you've also been carrying the problem forward, so starting over with new preferences sounds like a good idea by this time.

Thanks. Not sure I've ever seen these. I do have the LUTs and I know how to add to them.
Does this have a fix?

No, it's not normal if you don't have the shipped presets in the Abstract dropdown list. I hadn't loaded an Abstract preset, either, and you never have to load one of these from the disk. In fact, it can be difficult to find the ones that ship with the adjustment layers. Do you have any of them? If you click on 3DLUT file instead, do you see the list? The fact that the first time you enable the  button for Abstract  it immediately opens the File window may itself be a bug. The other buttons don't.

Here's what you should see after dismissing the window and opening the drop down list:

Nothing there, but it's the same in PS 2017. I think it's normal when you have never loaded one through there? The ones you loaded may then appear in the dropdown?