Achievements reset

 I'm pretty sure in-game achievements are connected to each save and not global. My achievements in game are global for all saves. In save A, I have introvert and loner and some other achievements unlocked and have 160 points. In save B, suddenly I also have 160 points and the save unlocked achievements when I haven't played there yet. I make a new save (save C) without cc, which I don't use script mods. Still the same. I play an hour later and make a new game (save) and suddenly my achievements are at 0 again and everything is locked. Then I go into save B and save A achievements are locked again and are at 0 just like save C. I close the game and open it again and go into save A first this time. 160 points just as it was. I go into save B and C again and it also turned back into 160 points. Is there a way to fix my achievements system or is it supposed to be like this