I am using latest version of WP.
I have my website (www.thetinylife.com) setup so the home page is just the normal recent blog posts (the default setup).
I added a page called resources, changed the order to "5" to put it at end of navigation bar. It went smoothly.
Went to my website,I punched in http://www.thetinylife.com, now it will instantly send you to http://www.thetinylife.com/resources, which is the page I just added. If I click "home" it will just loop me back to the page resources.
I tried changing the order, making it private, making it a draft, deleting it, nothing restores it back. The post that I have made are still accessible if I go directly to them. Under setting I check to see what it had designated for "home" and it is set to recent posts (default).