Not able to generate check after make external payment task.

Scenario as below :

Employee have Direct deposit as PPM.

Because of incorrect account number EFT is failed.

so i have voided the payment and make the external payment.

void payment and paid externally task completed successfully.

While running the generate check payment for external payment, its generating blank pdf.

Can anyone suggest how to override his PPM and paid through the check payment?

Thanks.