Based on my initial testing, Page Manager appears to be working now. Congratulations!
It took me a few minutes to learn how the flow of editing a page works when using Page Manager. After logging in, my menu bar disappears. Then I click the Page Manager button on the Toolbar. To navigate to any page I double-click the page under the HTML Page section within Page Manager. After a few seconds, the page appears and I can edit it. After publishing, I return back to Page Manager and repeat the process for any other pages that need editing.
I also like being able to turn Page Manager off (hiding the button on the Toolbar) by adding "Pagemanager.init = false" as a new line in the editor.cnf file. Well done!