hey i was playing your game and the game over is broken to a huge degree that it doesn't end the game and spit you out to your last save instead it will still act like you haven't been defeated with 0 hp on all of your party members making you lose multiple times or somehow being able to win a fight (rare chance that you actually have hp)
Something similar happened to me, actually. I don't remember how it happened exactly, but I remember getting stuck in a death loop and unlocking multiple game over scenes. It happens when you lose in a room with two or more enemies. The original enemy that defeated you disappear, but the other engages you, allowing you to lose multiple times IIRC.