I just upgraded my Mac to OS 11.2.1 on Sunday and noticed that when I try to highlight numbers in the medium interface in both InDesign and Illustrator I can't see what I've selected. I think the highlight color is too close to the background color. The attached file shows that Photoshop has an option for "highlight" that is not available in Indesign or Illustrator and I have also included what it looks like when I try to highlight a number. You will see a tiny blue border on the boxes where I have highlighted the numbers.