In a regular file project, with no assigned or created planes. when I create 2d lines and convert them to 3d objects. They are at the same height. However, when I change or assign a plane to a drawing file. My walls adjust but the converted 2d lines, which are now 3d lines, remain lower than my wall and the plane the wall is in. This is regardless of the drawing file I work in. Further, No matter which drawing file I convert 2d lines to 3d lines in, they all end up on the same lower plane. How do I fix this?