I too was having this issue. I spoke with tech support at Adobe and this was the fix. Go to "View" select "Display Performance" then select "Typical Display" You should confirm in your preferences that the Display performance also shows it as Typical.
I too was having this issue. I spoke with tech support at Adobe and this was the fix. Go to "View" select "Display Performance" then select "Typical Display" You should confirm in your preferences that the Display performance also shows it as Typical.
Worked for me hope it helps you as well.