Some group owners have reported missing wiki content. We’ve discovered that many wikis are displaying an older revision of the wiki. We’re sorry that we don’t have a good way to fix this without risking losing more recent edits that contributors may have made. We have updated permissions to allow you to see your revision history, compare revisions, and revert back to the version which has more current content.
If you are experiencing this bug, this is most likely the revision directly underneath the active revision.
To check this, click any page in your wiki, then click the Revisions tab:
You will see a list of all revisions (saved edits) to the page. You can click on the date/time stamp to view any individual page, or click the Compare button to view 2 selected pages side-by-side.
Once you have decided which page to show, click the “Revert” link to make it the active page.
