Spectral Force Genesis Save Problem

I'm not sure if there's something wrong with my r4 or the game itself. Whenever I save my game it saves normally. Later on I can load it fine as well, but for some reason the save game suddenly disappears later on after I try loading it. Does anyone know how to fix this problem? I already lost my save file twice ><

What type of R4 are you using? And what firmware? Try updating, etc.
http://forum.romulation.net/index.php?topic=1462.0

It's a r4 upgrade. I think the firmware is 1.18 (not sure if that's the kernel though) but the bottom left screen on my ds says v3.07