Hello, I'm actually playing on the Direwolf20 server and I have a problem with Thaumcrafts researches : when I try to get the researches for things like Ichor armor or Infusion seeds it doesn't give me the research note and says me "You lack the required knowledge to understand this". I've done all the researches I could, when I use a Research note made from knowledge fragments it gives me back some knowledge fragments. Does someone know what's happening to me and can help me please ? Here's some screens: P.S. : Sorry if my English is not very good i'm French.