Strange color when opening Camera Raw files only in Photoshop or Lightroom

I have a strange thing happening that maybe someone can shed some thoughts on. I use my Nikon D7000 to  photograph my artwork (paintings)..  Recenly after shooting photos of two large commissoned paintings (one of the paintings has figures in the upper left corner that are presented in saturated red/orange, yellow, with saturated blue shadows) using an 18% gray card to set white balance and exposture (I bracket the shots as well) as is standard procedure (and I have done for decades), I imported the photos into my Mac.  The photos import into Apple Photos, and I can then export them (both as nef and jpg files). I then open the nef files in Camera Raw, and usually do any necessary adjustmens (cropping, sometimes curves adjustments a bit) in Photoshop. However, the area of the painnting with the saturated red/orange, yellow, and blue figures is appearing strange in Camera Raw, Photoshop, and even Lightroom. The nef files look fine in Apple Photos, or even if I open them in Preview, but in the Adobe apps the red/orange appears to be a brillant scarlet, over saturated and too cool. The jpg file, looks fine if I open it in any apps, including the Adobe ones. It is an odd occurence I've never encountered before. Any thoughts?  Thank you in advance.