Has the wiki just been "reset"? All of the recent changes are gone, and the Special:RecentChanges page just doesn't have anything in it. Is this just the server clearing it's cache, or some sort of bug on my side.
Sometimes, when we delete a lot of pages in a short amount of time, the Recent Changes become strange. If you set it to show only some pages, It may only show the deletion log and, occasionally, some other edits.