Credit Note Applied to Customer Invoice

[EveSat]

I once entered a credit note to apply to a certain invoice. After applying, the invoice still has a balance receivable. Later, when next payment is received and tried to apply the receipt to that previous invoice which still has a balance (via A/R Receipt?, the line item that pertains to the invoice indicated as ‘Pending’ , the Pending Balance and Net amount is the credited amount in negative, with the current balance indicating the correct amount receivable.
If I try to manually apply or auto apply the payment to that pending invoice, it does not allow me. Did I missed anything?

Thanks for the help.

 

[Jay Converse]

If you see Pending, then there's a batch that's not posted yet.