I'm playing the Steam version.
So the game has three slots where you can save.
The first one is my sister's save file, and the second one's mine. I load the second one and start playing. Everything's fine at first, but then, in Shel's chapter, I get a comment from one of the characters about something that happened in my sister's playthrough, not mine. So I exit to the menu... And see that my game's been saved to my sister's save file!
At first I thought that I had made a mistake and loaded the wrong game, but this happens every time, I load the second slot and it saves to the first one, taking the options and choices from that one.
So, basically, I can't continue with my game.
Is there a solution to this?