It doesn't really matter what chapter. If i save, close and reopen the game the save is gone.
(except for all of your saves)
(OH also the same thing happened in the prologue-CH1 release)
So, I just finished the game, and it was amazing! Thank you so much for translating it! I played it by going into Omake Mode and then selecting the chapters. I still haven't fixed my problem, but it's okay :). I know there's a SDRA2 English translation, but I don't know how to download it. Is there a tutorial by any chance? I'm scared to look it up because I don't want to get spoiled :(