The mod allows creating Coal using 5 saplings saying total of "10"? And Iron ore using 10 saplings saying total of "20"? Not only that doesn't make much sense but they also don't have names, the coal one is named: "Unknown key: "recipe-name.wood-from-sapling" {Recipe}"
Also, it is allowing you to use saplings as Wood for any crafting, as you can see on the image, it is allowing me to craft a total of 7 saplings, even though I have only 4 Woods, but if you count that it'll use 2 saplings to create another 1 sapling, the math matches and that's what it does, it uses 2 saplings to craft one, not sure if it's a bug or a feature lol

https://ibb.co/8nw7ZfKS