Autosave not working in "Osu! Tatakae! Ouendan"

I've been going through the threads but have been unable to find a topic on this specific issue. When I play Osu! Tatakae! Ouendan, the game does not save at all. It's supposed to autosave your scores and the songs that you have completed. I thought I had to play through an entire game first, however, after finishing the game on normal (took about 2+ hours) and unlocking a new difficultly level, everything disappeared the next time I started a game. So I have to play from the very beginning again. No scores, nothing.I'm using an Acekard2, btw. Any help on the matter would be appreciated. Thanks!

Cay anyone help with this? I really want to be able to play this past the Normal Difficulty level....

maybe update your firmware...

I'm using the latest version. For the past week or so, nothing has seemed to work so far... What version are you using?