Save files being deleted on real hardware

[ameturpoet]

I was recently playing this hack on my Everdrive 64 v2.5, and I noticed that one time when I booted it up that one of the save files had been deleted, even after using the usual reset button to save my progress to the ED64. Then, the next time I booted it up, one of the other save files had been deleted, and the 3rd had been set to 0% progress. Is this a glitch with the hack? It's a real shame, I had gotten pretty far in before my progress was wiped.