So I've been playing the standard 104 release and I just encountered a wierd bug. I had the Oxford University down to 1 turn in a city, then switched production because I wanted to save the techs until the right moment. In this time, I captured an American city and made a puppet. When I went back to complete the Oxford University, it went back to 3 turns to complete on the same exact city focus. I didnt pay attention to the cost to build before/after but theres no reason I should have it down to 1 turn, then go back some turns later and its now 3 turns even on the same city focus. I thought puppets weren't supposed to increase the cost of National Wonders, social policies, etc.