RSA accounting entries created by Payment Posting for a Voucher in AP

Hello,

We are using PeopleSoft FSCM 9.2 PUM 39.

We are using Purchasing and AP in PS 9.2. When we create a PO Voucher and complete the payment process using the Pay Cycle. We then run the payment posting (AP_PSTPYMNT) process, it is generating an RSA accounting entries specifically for one Supplier. It does not generate RSA entries always, only once in a while (3-4 months) for one voucher or so.

In this case, we use Discount Earned and discount amount is less than $5 that is distributed at 10% to several voucher lines that expense amount less than $1 like. $0.59 cents.

Is there a set up or configuration or tables that can be checked to see if there is any error or incorrect configuration? We tried to replicate but it is not replicable. Does anyone else has RSA entries issue in Payables and any suggestions / advice please?