Huge amount on the RR document created during AR collection

Hi

I am working on a customer's site running 8.10

During AR collection, in foreign currency, a RR document is created, to account for rounding amounts, however, we are seeing amount which are not consistent with rounding.

It appears that the amount populated in F03B14.PAAP does not match the foreign amount collected converted to domestic using the exchange rate of the collection (in F03B11), and on each line of matching, the difference does not come from rounding - we have a few euros on each line.

I attach an example here:

On the first line for example, we have PAAP = -519028 (column Y), and when we convert the foreign amount received PFAP (column AH) with the exchange rate from the collection (column AK), we get -519247.47