Shape or object outlines do not overlap with the rendered items in OpenGL mode. What is wrong?
GroundMaker uses two different renderers in OpenGL mode: OpenGL and the default renderer for outlines that are currently edited. OpenGL doesn’t always position its windows corners accurately, in other words the two renderers use different coordinate systems. Try to solve the problem by resizing the window. It is recommended to use the default rendering mode since it gives you 100% accuracy.