Payment file Transmitted to UCM though "Transmit Payment file" Process Errored out in PPR Run"

Scenario:
Business using 2 different payment methods 1. SAL-ACH and 2. RET-ACH and for each payment method having separate PPR templates and 2 separate bank accounts with same payment file template format to make the payment to the purchase invoices.
For SAL-ACH payment method invoices, We are using one bank account to make the payments. For RET-ACH payment method invoices, we are using another Bank account to make the payment.
User wrongly selected RET-ACH payment method invoices into the SAL-ACH payment method PPR at the instalment review. Because of this, transmit process errored out.
But the payment file got transferred to the UCM server/folder even though the "Transmit Payment file" process errored out.