I used tinkercad to cut a model in half. loaded into both matter controll and cura. the 3d rendering looks perfect. but when I scroll through the layers, it dosnet make sense. starts in one area then another area , then across the two area, almost at random. I made sure the model was aligned with the bed and was carfulll to rotate 90degrees while working in tinkercad. any idea what is happening and how to fix?