Hi,

Steps to re-produce:

1. Create a page and set the shortcut to 'Shortcut to another content item' and select an media item (image or a GenericMedia - pdf, in my case).
2. Go to 'Visitor Groups' -> Create -> Site Criteria -> Visited page -> ... to select page
3. You get the popup with the following error: "Content with id 'XXXX' is of type 'Castle.Proxies.GenericMediaProxy' which does not inherit required type 'EPiServer.Core.PageData'."

I've removed the shortcut and it all works fine so I think this is deffinitely the issue.

Any help appriecated.

Thanks,
Aaron.