I'm playing as Poland (P-L Union, at this point). My alliance has been at war with the alliance of France and Spain for several years; Great Britain's alliance is also at war with them. In 1704, I make peace with Spain. At this point France has only one province not controlled by me or by Great Britain (Nain). My war score is 99. However, France will not accept any peace proposal, even a request for a single TP or 25 ducats. Any idea why this might be happening?