num
How many vehicles were broken down when the replication ended.
Reported apart from an assignment left open, and both are needed to read the other. A failed vehicle keeps its load, so its task shows as an open assignment and its entity as one never resumed -- which, without this row, reads as a run that was merely too short. It was not: the work was stopped, and how long the fleet spent stopped is FleetVehicle.fracTimeFailed.