Unable to account reversed entries loaded using a transaction source enabled as costed and accounted

We have a requirement to load accrual entries as costed and accounted. We created a new project transaction source with a document enabled as Costed and Accounted. We loaded some costs using this document along with the accounting code combination and Accrual set as Yes. The system created the negative entries in the next month as expected. The issue is, for these negative entries, the system doesn't copy the original accounting entries nor allow accounting. Those are stuck without accounting entries. How can we load accrual cost using costed and accounted transaction source so that the accounting entries get copied