Changes when masking in Camera Raw aren't saving

Starting in Camera Raw (CR) I "open as object" to Photoshop (PS). When opening in PS, I often go back to Camera Raw  (CR) to make a small adjustment. I see the changes made when going back to PS, as I would expect.  However, just today, after going back to CR for brush work on a small area of the face, then opening and seeing correct changes in PS,  when I go back to CR, the previous small area brushwork seems to have been converted to cover the entire face.  I then cancel CR, otherwise the change I didn't make sticks.  I've saved the image, closed everything, updated NVidia Driver, updated windows, Photoshop, Camera Raw, etc. and when I go back to work on this face in the image again, it's the same issue. Very strange. Any clues here? 

NVIDIA GForce RTX 3036

Processor 12th Gen Intel(R) Core(TM) i7-12700K, 3600 Mhz, 12 Core(s), 20 Logical Processor(s)

32 gigs RAM

Windows 11 Pro