iPhone Contacts Won't Scroll Through Alphabet

When I go into the contacts on the home page, or the contacts in the phone area, I cannot use the scroll bar on the right side of the screen. I can only make it go to the search (top of the page) or the As, and there are more than As in the contact list. Worked fine in previous version and noticed it didn't work immediately after upgrade, since I use it a lot. My wife's phone, which is identical, does scroll? Tried turning off and restarted multiple times.