there's a bug when you get your first arcane spell, I reset the current level and then I can't use the spell anymore, even after reloading game, the spell is unusable (doesn't appear in the battle screen, althoug in arcane spell section it goes as purchased), then I bought another spell, It appears in battle, but the first one is still missing.
i will look in to this. so after getting the first spell, you go to the next level, then pressed restart? also, what spell did you get?