For an Event List to show up on the Event Filter within the Visualizer, it must have at least one Event on the list. It also must have the appropriate Season, Module and Round settings.
To check if an Event List has been set up properly, navigate to Configuration Records > Event Lists.
The Events section at the bottom of the Event List record will show you all of the valid Events tied to it by season.
Click ‘Manage’ to add/remove Events.