We have seen this issue specific to macOS 10.15. Enabling “Screen Recording” access right to Illustrator resolved this issue.
You can change this setting by going to Apple > System Preferences > Security & Privacy > Screen Recording and add Illustrator Application.
Please try this and reply in comment if the above suggestion worked for you.
An error occurred while saving the commentLexi commented
When I go to select a color from outside the Illustrator window, I must click on the gray illustrator background, hold down the mouse and move outside the illustrator window to even grab a color outside of the program. However now, whenever I try to do this it only picks up the background colors of my desktop image, even when I am moused over a different window, image or icon. Id love to be able to grab from colors outside the illustrator window, for example things on my Safari pages or images.Lexi supported this idea ·