deadlock
Whether the wait-for graph is walked when a transporter blocks.
On by default. A guide path that deadlocks and says nothing is the failure mode the whole subsystem exists to improve on, so the cost is accepted: the walk happens only when a transporter blocks, which in a well-designed network is rare, and it is proportional to the fleet rather than to the number of events.
Turning it off buys throughput and gives up G5. A run that then deadlocks stops advancing and finishes normally, with nothing but the end-of-replication warning to say so.