Last modified: 2008-04-09 20:25:18 UTC
If the last edit in a page history is a page protection (possibly other, similar edits), the page will not appear on the list of recent edits created by the user's Watchlist, even if there were other edits before that that would normally cause it to appear.
This was recently fixed. *** This bug has been marked as a duplicate of bug 5546 ***