I've installed 3.3.3 Confluence on a test server, imported production data, and upgraded from that version to 3.5.11, then to 4.1.7. After the upgrade I can see the production data in Confluence, but when I try to edit the page it just brings up a blank page that only allows me to modify the page title. The editor itself never shows up. I was able to create a child page and then edit it afterward, but none of the existing pages are editable. I've check the page restrictions and there are none for the page I am trying to edit. Global permissions are setup the same way between my production system and test and I am able to edit the same pages on the production system. When I view the Space Admin pages, the permissions are identical, but I noticed that there's a new Application Link ability in the newer version. There's also a new Application Link at the Administration level within Confluence Admin on the new version, where on the production system the closest thing I've seen relating to that sort is Trusted Applications and OAuth. It looks as though the Application Link on the system level combined the two mentioned above, but I really don't understand how the setup should be related. The documentation provided does very little to explain it. Can anyone help me out?
