I've just started my first project which aimed to cut out the pattern of a leather card holder. I first created the pattern with AutoCAD and the .dwg file was imported into Cut2D Laser in order to created the .nc file as attached. I ran the file and worked on a 250gm white paper. As you can see, the green lines in AutoCAD should be closed but somehow the pattern "cut" by the Emblaser were discontinued. I ran the file twice and the outcomes were different, the patterns were discontinued in different ways. What's go wrong?