I've experimented with XRite's ColorChecker Passport and created several camera profiles. I have one I'm happy with and am going to delete the others from
as documented elsewhere.
QUESTION: What happens if there still exist images that use one of the deleted profiles? Will they just get "Adobe Standard" applied, or will this (reference to non-existent profile) cause a problem in the catalog database?
I decided to try this by moving one of the old profiles out of the folder (not deleting it) with Lightroom not running, then starting Lightroom
The answer is that the image reverts to "Adobe Standard" camera profile.