Autocash with negative amounts

Hello

I was wondering if someone can provide assistance concerning an issue we are facing when an invoice has negative line items. We have noticed that the auto-cash matching programs work with no issue when the negative line items is the first line of the invoice, however if the negative line items is any other line, JDE can not match correctly. It in fact creates a R5, a deduction and leaves the negative line open.

What setup can we do in order to allow the match to fonction correctly whent the negative line item is not the first line.

Many thanks