Can't draw on top of a photo in Illustrator 2020
Hello dear community,
I am having an issue not being able to draw on top of any photo in Illustrator 2020. I've tried It on both my mac and my windows 10 pc. When I attempt to draw with the brush tool, the little "not" symbol hovers above the canvas. The layer is unlocked. The photo is a regular .jpg. I have also tried to create a separate layer on top of the photo and draw on that. The same "no you can't" symbol appears. I am admittedly a newbie. Any suggestions? Thank you!

