Recipes book problems
These limitations are valid for EVERY Spigot plugin that creates custom recipes with custom items as ingredients, it's not an ItemsAdder bug and I can't fix it in any way.
Please don't report these bugs, I can't really do anything to fix this problem, it's a Minecraft limitation.

"Showing Craftable" button not working correctly

"Showing Craftable" button doesn't work with recipes that use custom items as ingredients.
โ€‹
โ€‹

How to fix?

Set the button like that when you want to find an ItemsAdder recipe in the book.
โ€‹
โ€‹

Red recipes even if ingredients are in inventory

There is no fix for this, it's a Minecraft bug.

โ€‹