This is a bug report. I made with Ramesses a research agreement around turn 90. I am now in turn 210 and the agreement was never completed. I am unable to make another research agreement with Ramesses too. I have attached screenshot proof. In the first two images you can see all of my "current deals" and you can see that I have only 2 with Ramesses. We are just exchanging resources for money. Current deals 1 Current deals 2 In the last image you can see that, in the diplomacy screen with Ramesses, the option to make a research agreement is greyed out. The tooltip shows the reason: "research agreement is already in place"! Problem How is that possible? Is it possible to fix this? P.S. In this moment neither me nor Ramesses have money to make the agreement anyway, but the problem presents itself even when we have enough money.