Howdy folks. First post, lifelong player. Im on a domination path with Scythia and haven't had a game be this finessed ever! However i am building a Dam in Pasargadae and for some reason it wont let me finish building it. As the title says i am one turn away and it just will not let me add it to the production queue and just takes me back to the queue to choose something. I have tried finishing it with a Military Engineer and there are no other dam's along the river so it must be a bug! This is rather annoying as i have abstained from building any polluting sources of power for the whole game and this is the only thing stopping me from getting power to one of my largest cities! Any ideas? (Playing on switch/ up to date as of today/ All expansions etc....) Thanks in advance!