Before Continuing:

• Check you are using the latest version of the mods and its dependencies
• Always include a latest.log if you are crashing
• Remove mod that enhances Minecraft: Optifine, Sodium, others. The issue persists.
• If you are unsure which mod is the culprit.
  Disable all of your mods and enable them 1-2 mods each time to isolate the culprit
• Confirm that there is no existing issue with a similar description submitted in the list of issues.

Version

1.20.1-FORGE

Supplementaries Version

1.20-3.1.11

Moonlight Lib Version

1.20-2.13.47

Describe Issue

specifically for when you have mixed books in the config turned on. if you try to take an enchanted book from the leftmost side, itll take the rightmost side instead, and vice versa. ive tried without any other mods and it still did this.