Oh geez, sorry @dheiny, they were private, not public! Sorry! This was definitely user error. Maybe, instead, the note on the page could say “this project is private”?
I guess where my confusion was coming from, is that from the “homepage” of the project, there is no visual indication of whether or not it is private or public. I know there is a “lock” icon on the thumbnail in the dashboard, but once you click on that project, the private/public toggle is buried under the “edit properties” button.
Perhaps you could add an icon/button/toggle on the front page of the project. One of these places might be best?