[0.291] Edge Scroll

The Edge Scrolling is not working fully.  It works fine when I try to scroll the top, right, or left edges, but when I try to scroll down, the behavior is intermittent, and frustrating.  It feels like works randomly about half the time, which makes the whole process of edge scrolling feel broken.

What I think is happening is that the user interface elements on the bottom of the screen are interfering with the app detecting when the user tries to edge scroll down.