Dead-water, moss-skin, root-house and miredancer show up correctly. Found copper-eye yesterday but it didn't get counted. Today when I found miredancer for the first time, it completed the achievement even thou it says I still have bright-throat and copper-eye villager left to get. I believe this might be a visual error, since I found the copper-eyes villagers, and may have bright-throat villager from before. If this is true then the achievement isn't visually updating the checklist in the UI.