Having a weird issue on 5.6.3.4, though it was present prior to updating to 5.6.3.4.

I've created customized SideNav stacks for various pages...the intent is to have a Search bar that only searches those single pages (along with subpages). I replaced the original stacks with the customized stacks, and the narrowed search works perfectly as long as I'm signed into the website (Concrete5 login). However, if I visit the site as a guest, the old non-customized SideNav stacks are still in place.

I've tried clearing cache and reindexing the search index. Any ideas? This seems truly odd.