All morning I've been experiencing an issue with the tracker page. New posts are being listed but a few are stuck as having a "Last post" of "0 secs ago". This persists for minutes and sometimes hours across a refresh/reload. The replies remain marked as new despite my having viewed them before. Something broken on the server perhaps?
It's a Drupal bug. Nothing can be done about it.
Sometimes, the impossible can become possible, if you're awesome!
It's happened up to 10 hours or more. It's only happened to me once, though. Unless it's something else entirely. But it sure sounds familiar.