A true story about a deployment miracle on prod - and how AI helped restore my faith in common sense. We ship a routine backend deploy. Version checks - fine. Tests - green. Next morning: a developer swears the app is showing the old version. I check - it's the new one. We're both right, and neither of us is happy about it. A 5-minute field report on chasing a bug that "couldn't possibly exist," with an AI agent along for the ride.