Payment advice is changing if the settlement changes afterwards despite posted payment. (D365 standard behavior)
This is incorrect in terms of accounting in Germany, as the payment advice must not be changed after a payment was posted (regardless of the changes that occur later undo settlements). Especially when paying multiple invoices, It is necessary for the vendor to assign the payment to the invoices. For that the vendor needs the original payment advice.
It should not be possible to change the payment advice after the payment was posted or there should be a possibility to generate the original payment advice. Maybe a possibility to choose via DropDown between current state and original state before generating could be help.