The bug
After executing the /reload
command, clicking on recipe book recipes does not work.
Additionally if you had the recipe book open before it will not show the category tabs until you close and reopen it again.
How to reproduce
Get some wooden planks in your inventory
Click any available crafting recipe in the recipe book, and see that the ingredients are placed
Type
/reload
Click any available crafting recipe, and see that the ingredients are not placed, but the sound still plays
Notes
This affects the world no matter if there is a data pack installed or not.
This bug is actually caused by the player forgetting all recipes on reload. They still, however, appear in the recipe book.
This affects furnace recipes as well.
Confirmed for 18w10c
Not only that but also with doLimitedCrafting gamerule set to true
The recipes are visible in the book
but /recipe take @a *
it says it can't remove anything and yes
/recipe give @a * will give you the recipes correctly.
The bug therefore critically influences recipes.
What should be fixed is that the recipes a player has learnt are saved to disk correctly and loaded back in correctly.