As of 3.3.1 (and possibly earlier) when you set a WordPress Page (not Post mind you but Page) to Private, it has the undesirable affect of hiding the page from everyone but the creator of the Page.
The preferred way to pull a page off the site temporarily would be to change it’s status back to Draft rather than setting the Visibility to Private.
I suppose if you were the only writer of the site and using the admin login, it wouldn’t be so much of a problem but if you don’t log in as admin, or are not the creator of the page, you’ll effectively be locked out of administering this page in the admin section even if your user has administrative level on the site. You’ll still be able to visit the site while logged in but you can’t set it back from Private without going into the database and making the change OR logging in as the creator of the Page.
So, if you are one of many people administering a site using WordPress as the CMS, please don’t “hide” pages using Private unless you are fully aware of what this actually does. Is this a bug or a feature? I’d say the former since you can view the page as an administrative user but you can’t see it in the admin section of site nor can you administer it.
Have you run into this behavior before?
At Over The Top and Exhibit A Communications, I've programmed solutions for Google as well as at least one other company that was later acquired by Google.
I've been CTO of an Internet SaaS company and spent my time pretty evenly between guiding the future technical strategy of the company, architecting software solutions for my dev teams, designing and running a data center to service our clients world-wide as well as being a technical evangalist/sales engineer to our media clients large and small.
I've also been Chief Photographer of the Daily Sun/Post newspaper back when it was a 5-day a week daily newspaper.
I also spent a great many years as a beach lifeguardfor the City of San Clemente as well as Jr. Lifeguard instructor and then as it's program coordinator.
Private Pilot with Instrument rating and proud husband of soon to be 25 years (and counting).