Week4 : VGG Network

Hey, I have successfully passed all test cases and there is one optional section " Load data and train the VGG network (Optional)" which I do not need to do.
When I submit the assignment without doing the optional section then It shows me as a failed every time 0/2 grade.
Also, This optional section takes a lot of time to process.

Can you shared the image of grade output submission detail where it will show why you failed the grade.