So I am embarrassed to say that I have figured out the solution to my issue.
Thinking that I had just replaced the RAM, I thought it was a much greater issue. It was actually in the Preview window. The Eyeball was not highlighted. I was so used to CS6 that I didn’t even realize it could have been that.
I was doing a remote session with an Adobe Support person and they must not have noticed it either. They went to the preview panel and clicked on the “show masks” and it became unhighlighted. Then it smacked me in the face so I highlighted the eyeball and everything was back in working order.
Thank you for you assistance! Just another learning experience no matter how small.