Duplicate Pages confusion?

Hi All

I am duplicating a page in order to keep the same format, so I duplicate it, rename the new page, then I go to work changing such things as assets within sliders and text only to find my original page is changing also. If I rename an element it changes the original as well.
I know this isn’t right, what am I doing wrong?

Many thanks in advance

Nick

If you are modifying an existing class then all elements that class is assigned to will be affected. Also, make sure you are not modifying symbols unintentionally.