The recipe of 6 Zombie Hearts, 2 Rotten Flesh and 1 Gold Sword now makes Pig Charm Fragments since the Nether Update. I imagine this is because Zombie Pigman got renamed to Zombified Piglins with the Nether Update. There are both kinds of Piglin Charm Fragments, but no recipe for them. I assume you can get them from a rare drop, but feel either the old recipe for Zombie Pigman fragments should be transferred to either the regular Piglins / Zombified Piglins or have a separate recipe for both.