We have isolated the recent “story not found” errors within the last few hours to be result of our out-of-sync database cluster. Most systems are in sync but a few are not. We have deactivated and will rebuild those affected machines.
Please note new submitted stories that result in “story not found” errors are perfectly fine in our system and you do not need to re-upload them. Only the display is currently affected by a few bad servers.
Everything should be back to normal within the next 30 minutes.