Changelog:

• added this command /ceh viewer category default recipe .Change the default and recipe after what your category and recipe have for name.
  It does include tab-complete for this also.
• Added new debug option, the normal one add to much messages in the console. Add this key and value too your config.yml " enable_crafting-debug: false " or remove the old file.

So set enable_crafting-debug this to true when you have problems, when a recipe can be crafted without items with your specific metadata and report this on discord or GitHub.