Yup I also had the above problem. Needed to tear down several things to get it working again.
Also playing spain in GA, one of the achievements is getting 30+ buildings/upgrades in 4 countries/provinces. BUT i never got the score for it, even though i had build everything i could (i know i started a bit earlier ), it still doesn't show 30 buildings/upgrades there, so i suspect somehow the counting for upgrades is not working 100%