When I made a camera profile based on a mosaic DNG of the ColorChecker image ("Convert to linear" deselected in the Save dialog), it had a perfect visual match right out of the box. But then, PhotoAcute required linear DNGs. So I made a new profile based on a de-mosaiced DNG. The profile had not the same perfect match out of the box, but could easily be tweaked to have so. So I stored both profiles. Now, when I open a raw file in ACR, it makes no difference which camera profile I choose - neither visual nor in the histogram. It does make a difference if I choose eihter of these two versus ACR 4.4 versus 3.3. What is going on?