Hopefully this screen shot will answer any questions I fail to explain properly.
I sketched the rectangle that you see when the part was unfolded. I then added the "Extruded Cut" feature. I need this "cut" to be done while it is in the flat, NOT when it is bent. Does that make sense? The rectangle is cut out BEFORE the sheet is bent, to the exact size of the blue sketch. THEN it is bent. The problem I'm having is that the "depth" of the cut is the only portion showinig up on the front face.
I've actually exagerated the size of the blue sketch (changed the dimensions) for demonstration purposes. In reality it is much narrow and does just creep onto the front face, about the same depth as the extrusion so at first we didn't even catch this this was happening.