I found a bug and Merijn fixed it nicely. https://forums.civfanatics.com/threads/bug-reports-and-technical-issues.533867/page-367 However my save (Knoedel mod of july 2020) is still stuck with some specialist + and - in some cities, I moved. Deleting them, creates the miscalculation still. A duplicated city however does not, so I tried duplicating the city and then deleting the old one but the old one still causes an issue. I can't find in WB where you see or alter a specialist bonus in a city, without a specialist present. So if anyone else has any ideas? I'm ok so long I don't delete the city or no one takes them over. Maybe else I can figure out how to properly restore the total Culture/esp/science/gold income which obviously gets out of wack. I'm inept at coding... I'm afraid.