Hello TW,
Yes we have similar issues in output from deliveries and billing.
For the case we have 5 sequence access, with 4 fields, one table per sequence access.
In NACH there is no record possible to determine the output.
In the other cases, for example, deliveries, we have an special problem too: we have an output created with dispatch time=1. But later sometimes the output is generated with dispact time.
In all case there is no determination output analyze to search a possible root cause.