The "Register in another event" button clears out any events that have been placed in the shopping cart. Long story short, multi event registration is not working.
Also, the user gets redirected to a page saying that "There are currently no events that can be registered for".
Which sends me back to the first page of my list of camps. As you can see the camp that I had already registered for is in my cart. But when I click on any of the pages (1 - 8 in my case) this is what happens: