Research projects disappearing
Hey everyone. I’m still fairly new to Civ VII and still learning. I am on my third attempt to reach the science victory. I’m nearing the end of the exploration age and started the calculus research project. I had 4 high production cities with each one running a discover calculus project. After about 4 turns or so of those projects running, they simply disappeared from my production and only my capital completed the project. What happened? I haven’t reached the end of the age, there is no damage to any of my city districts, there are no newer projects after discover calculus in the tech tree, and there is no longer options to resume the project in those cities. It’s almost like they just simply disappeared. This same situation happened with the radio telescope project in the modern era of a different game I played as well. Is there a limit as to how many times it can be researched? I was under the assumption that each city could research it once. The weird thing is that they were all in the process of being completed and then suddenly gone with no explanation.