Do you have sacred candle equipped? Or did you pick it? I do know that Sacred Candle does that because of the whole life span tied together so if the princess equipped with it dies then you die too.Im confused, on previous versions, if you died (or an enemy came inside a princess) it would switch you to another party member, with the character at 1 hp, needing to be revived. Now, you just instantly get a game over. What gives?