Lazy Load page Include while on a tab

I’ve been scratching my head as to why my page include isn’t lazy loading.  I have a queue, and only want the page include to load when the queue item has been selected.

Finally after reading the tutorial, I noticed this:
4. Click Lazy Load if you don’t want this page include to load immediately. This will make the parent page load faster, and your page include will only load when it gets a request from the Queue or when its tab is opened.

My queue and page include are on a tab.  Is there any way I can get it to lazy load?  I pulled them off the tab and confirmed it works that way, just doesn’t on the tab.