Howdy Bill,
I would love to help you with this.
That’s actually intended behavior. The Next Month link will only show up if there are future events. But if the currently viewed month contains the futuremost event, there’s no reason to show the link and so its not shown. In addition to preventing users from continuosly clicking on a button that shows no new information, hiding the future month link also improves SEO.
Does that all make sense? Will that work for you? Please let me know.
Cheers!
– Brook