[MAC] GLITCH: When I click areas of screen, the cursor jumps straight up

I'm playing on a Mac, and when I plug into an external monitor it works perfectly. However, when I use the native screen, clicking on the area roughly right above my skill icons will cause the mouse to wildly jump to the top of the screen (so that it begins scrolling up), while keeping the horizontal orientation the same.

It's honestly unplayable unless I have an external monitor.

I have a MacBook pro 15 in, 2018.