Affects Version/s: Minecraft 1.12.2
Fix Version/s: None
Environment:Windows 10, Java version 8 update 144
Right-clicking with Knowledge Book grants player recipe listed in knowledge book.
When in adventure mode, knowledge books work only when players' cursors are not on any block. This does not occur in creative or survival mode.
How to recreate:
/give @s minecraft:knowledge_book
to acquire recipe book.
Enter adventure mode.
Look at any solid block.
Use recipe book.