Adding a button inside a scrollar

I tried adding button links inside the tutorial of the masked simple scrollbar tutorial on here and I am unable to get the button to follow its actions though it does do all its animation properly. i am using the older on(release) command, but the button works outside of the scrollbar fine, just inside it doesn’t complete it actions. Why is this and can I add buttons that fully function inside of scrollbars? This seems like it should be easy, but doesn’t seem to be working right. Can anyone help or steer my in the right direction?