I can't edit a route by dragging to a different road. Once I create a control point, I can never get rid of it. And, control points get created every time I try to drag to a new road. According to your documentation, " To remove a control point, click on the control point." - this never works. Once a control point is created, I can never get rid of it and then dragging correctly never works. I've read the documentation repeatedly and tried 3 different browsers: Chrome, Edge, and Firefox. Same problem in all three.
I have the basic plan and I'm using Win10 on a Dell XPS with lots of memory and CPU power.
I really like your app, but this is very frustrating. Once mistake and I have to start all over again with a fresh map.