Credit Memo Invoice is not getting selected for payment along with payment request

Dear

We have payment request which is generated for the AR refund, however along with payment request invoice we also have a credit memo under the same invoice batch. When we are trying to do the payment through quick payment, system unable to select the credit memo invoice only the payment request invoice is only fetching from the LOV.

Please let us know is there any key setup is missing

Thanks & Regards

Rajesh Katika