For the life of me I still don't understand why, but I made the whole dialogue system in our game using csv files, and everything broke when it was on itch (or just exported at all really) because Godot just would not export the csv to the pck file. I lost many hours of the final day on that, and only corrected it after the submission time was over (thank god for the grace period) by refactoring the entire dialogue logic to use json instead.
And also I think we overscoped a bit, but that's just how jams go haha
Here's the game that now mostly works, if you want to give it a go!