When accessing the report as a shared user, I click the "view" button for the record and the popup does not generate the page correctly. All that displays is the menu bar for the app and no error messages. Also, the popup overlay doesn't close correctly on X icon. In the Firebug console, it's throwing the error "Permission denied to access object" for wmsbar.js.

For the app admin, the "view" action works fine so I think it is a view permissions issue. I set all report visibility to "all." That didn't fix it for the shared user. I'm pretty sure this is a permissions issue but I've looked at every setting to try to get it to work for another user. All the other custom actions I created work perfectly for all users of the app.