We are using R12.1.3

There has an account has both delinquent transactions and some pre-delinquent transactions, we have a scheduled process to run the dunning letters ( Request set with workflow background process and IEX: Bulk XML Delivery Manager )

Should only the delinquent transactions just be picked during the process, but our users noticed that if the account have these 'mixed' transactions, the dunning letters pick up nothing,

until they closed the work item, re-open it, and run through the request set for Print Dunning Letters, then those delinquent transactions can be picked up at the dunning letters.

Please find the samples from attachment.

Has anyone come across the same issue, any help or advice would be appreciated.