Minecraft version: 1.19.2
Jobs+ version: JobsPlus 1.19.2-0.9.4
JEI version: jei-1.19.2-forge-11.6.0.1010
Forge version: 43.2.3

The issue I found is: When using the 'enchantments from items to books' power-up with a stack of books, all books are consumed instead of 1. The item still gets consumed and you get the enchanted book but you lose 64 books instead of 1.