I did the quest in 3 others chars without problem the item asked on quest was the same when i finished the quest. But on other char that i tried he asked on Quest for 200 Curse Eye Tail () BUT when i went to the NPC he say is Evil Eye'sTail () Like in the pic bellow Spoiler: . I will just back and farming this Evil Eye Tail but just to show this bug e-e
Thanks for the report, you'll need to get the Evil Eye Tails to complete the quest. The two names were mixed up, I have fixed this now and it will show correctly for the next players that get these items.