For some reason, whenever I try to make a pickaxe of the core it thinks it's the axe of the stream. I'm unsure if this bug is from the server or the modpack. Update: it thinks the infusion recipes for the sword, pick, and axe are the axe's infusion recipe. The shovel and hoe are completely unaffected by the bug
This is a Known Issue with the Modpack. The Pack's authors have been made aware of it, and a few others such as the Bone Rod. I can't remember each of them off the top of my head, but I've posted them to the ModPack GitHub.
I remember posting something on his github about one of the infusion recipes but can't remember which one. Think he said he was going to add arcane crafting recipes for some of the broken thaumcraft recipes