It's been several years since the original author's post, but unfortunately I'm having the same issue as described above: Administrators and all other roles get specifically DENIED from seeing content the moment you set any one role in the "Selected roles or users(plus administrator)" field.
Do you know if this issue has a resolution?
We are using Sitefinity 8.2.5900
We have since overridden the error using the Global.asax file, and are unable to generate it again without rolling back the site, but the error was this:
This type of page is not served.
Description: The type of page you have requested is not served because it has been explicitly forbidden. Please review the URL below and make sure that it is spelled correctly.
This occurs when:
I believe the bug lies in the "Selected users (plus administrator)" functionality, whereby the selected user is indeed given access, but the administrator is automatically denied instead of automatically included.