Menu Item Showing Up Randomly

I am trying to get an answer on how to fix an issue I seem to be experiencing. On my pages (and not all) the menu item for that same page shows up. I have the settings same across the board and for some pages it doesn’t show and for some it even shows twice. Any idea on how I can remove this? An example of this would be here:

https://www.ussailing.org/olympics/calendar/ You can see I am on the Calendar page but still shows Calendar on the sidebar. The settings are set to only show child pages so basically that should show no menu on that page. Any ideas? I’ve submitted this question in the support for the plugin and I have no response.