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Structure Design Workbench Issues


New member
New to forum. Brushing up on Catia v5r21 (Student Edition) after 7 years away. Using Structure Design to create a frame. The first time I used it, it worked like a dream. Now, when I do a cutback operation, the member I'm cutting just disappears. It's still in tree but I can't get it back. Any help would be greatly appreciated.