Welcome to our community, Karen
If I were in your shoes I'd be double checking both timings
as well as Click Box actions. Here's why. If you assigned "Go to
next slide" as the action for a Click Box object, it should do
exactly that when you click. There are only a couple of reasons
that make sense to me as to why that may not happen.
* The Click Box object has been timed so it is appearing
later than your click is happening. In this case, the first click
would do nothing, the Click Box would appear and a second attempt
would work.
* The Click Box object has been configured to require a
double-click in order to function.
If you can, take a screen capture of the Timeline for the
problem slide and post it for us to analyze. We might be able to
tell you from that why things don't seem to be working as expected.
Cheers... Rick