Ask an operator where their time is lost and most will name the dramatic failures: the missed vessel, the customs hold, the warehouse that flooded. Those events are real, but they are rare. The hours that actually disappear are smaller and far more frequent.
A truck idling at a gate because the booking slot was never confirmed. A consignment re-keyed by hand from one partner system into another. A query about a delivery date that takes three emails to answer. Each is minor. Together, across a network handling thousands of movements, they are where flow quietly drains away.