I am new to here, i been trying to get this to work. Used different knives, swords, whatever I could use.
Welcome to UO:R ! Info below http://www.uorenaissance.com/info/Bowcraft_Fletching You need to use fletching tools not just a blade.
I asked on discord and found out about the fletching kit. On the website it says knife. Also cooking i tried doubling clicking meat it dont work either.