The "state" field on discovery status record would say "Completed" even though the schedule is still running, and keeps adding records to the ECC queue
This can possibly happen because of the "Discovery - Complete" business rule, which is responsible for updating the the state field. This business rule is triggered when the "completed" field has a value greater than or equal to "started" field, and marks the state as "Completed"
This situation is possible sometimes when an output probe is re-processed, thereby having more than one input probe for an output.
Note: For multipage payloads, there is a check in place, to consider multiple input probes as the same as long as they are corresponding to the same output probe