I'm using CiviCRM 5.1.2 on Joomla 3.8.10. I'm trying to create a menu item for an event info page, and the drop-down in the Joomla menu manager is only displaying past events. The drop-down for the Event Registration Page shows the currently active and upcoming events - there are only 2 of them. But the most recent events in the drop-down for the Event Info page are from 2015. We've been using CiviCRM since 2010, so there are a lot of old events.
I'm assuming there's an issue with where the menu item drop-down is pulling the events from. I've turned on debugging and emptied caches, but otherwise I'm at a loss for what to try next. Any assistance is appreciated.