Thanks for the heads-up! The recipe should work correctly now.
As for the content, yes, currently the only story available after the beginning of chapter 4 is Rigor's training. Though, there's a secret fourth lesson if you impressed him enough or have the suitable magic type.
This game and the story within is still a work-in-progress (WIP), which means there are many stuff still being worked on. Thank you for playing and being a part of this long journey though :D