So I was watching the replay of my base in world war to see where I could improve on traps maybe layout etc. when I saw this guy not complete my base but still get 5* on the main map.
I had the same bug where I upgraded my library it said it was finished, so I had clicked it. Went on doing normal stuff went to shove troops back in to research and it said something about 3 citizens upgrading oil research. Quite annoying since it canceled the progress that I had made after I...