Net Amount Under Installment Level Displays Discount Amount in negative Instead of net Amount

Net Amount Under Installment Level Displays Discount Amount in negative after invoice paid Instead of net Amount.

This seems to be Oracle seeded behavior; however, we have not been able to find any Oracle documentation or support note that confirms and explains this functionality.

Could you please check whether there is any Oracle note or reference document explaining why the Net Amount is updated with a negative discount value after an invoice is paid with a discount?

Before Paid

After Invoice paid with discount