Fixed it.
I went to the save folder and manually deleted both files. It seems that the game refreshed it saving function? maybe I just got unlucky the first time saving, and the save file got corrupted somehow?
Thanks for the tips!
But by ''old save'' I ment 1 day old save, since I ''bought'' the game a couple days ago; Started playing the game, when it was version 9. But since the save loading works fine for you, I guess the problem's on my end.
I'll try to do something about it while waiting for some miracle-post telling me how to fix it.