I know, that's why I'm upset. I HAVE researched Naga Society and have never seen a temple (therefore I can't have the key). This happened twice in a row now - naga society in spring and no temples all the way into winter.
I see that the mission chance is 50%. Are you sure it will try every month when coded that way? What if it tries the first month you have the research, and then if those 50% fail it never tries again?
I'm just not sure what's going on. I'll probably edit my save to spawn the mission.