Anybody have any idea why when I select User Skirt/Brim, it doesn't print the skirt for some jobs? Doesn't print http://www.grabyourgat.com/images/pics/3d-printers/simplify3d/skirtproblem1.jpg http://www.grabyourgat.com/images/pics/3d-printers/simplify3d/skirtproblem2.jpg Prints http://www.grabyourg...