Cannot set accurate motion zones

I have an LG V40 ThinQ with Android 10.0 with the Ring Pro (new version)(wired with separate transformer, no doorbell) . I'm using the Android mobile app version 3.38.1. When I installed the new doorbell pro, I had to redo the motion zones. The problem is the zones don't adjust smoothly. I cannot make the zones shallow enough while keeping a rectangular shape. The adjusting dots will not move where I want them to go. Each time I delete a zone a start again, I can get different shapes. If I move a zone up in order to make a small rectangle, I cannot move back in place at the bottom of the screen. I tried calling support twice. The first time was worthless, the second time was a little better but I am still not happy with the zones. Does anyone know a work around? Here are the shapes I'm stuck with: