[img]file:///C:/Users/user/Desktop/Simplfy3d%20Bug1.jpg[/img] [img]file:///C:/Users/user/Desktop/Simplfy3d%20Bug2.jpg[/img] I dont know why, but even after exiting and removing, and inserting model, the software is covering up my holes when it slicings for printing :roll: I have checked that the sof...