Good day 

first of all excuse my low English level regarding accounting terms 

I have a problem using V14 during reconciliation! sometimes we have invoices that are paid with check and cash, and when u scroll down over a bill you find 2 boutons of reconciliation, when I reconcile the payment amount of the check, the cash doesn't want to reconciliate and it shows me this error and vice versa when I start with the cash payment one.

This happens so many times not only with cash/check thing, it even happens with 2 checks sometimes, I don't know what the problem is, and how can i solve it because we have so many bills unlinked with their payments because of this error