Oh? I've just checked on my main IS 6 character, and the quest "A pill of Baek Munrang" is still available to the NPC under the tree in Hefei.
Before RF it was 2x stat + 1x attribute reset. @ozzy1920 better check it first what this quest reset now.
Please check how many RTE quests you have accepted. You might have reached the maximum number of accepted quests.
The thing that u have 1 reset for each account. If u used that reset with an other character it is gone. If u didn't do that just send a ticket
You have too many quests @ozzy1920 . Having 15 or more quests will cause all of your quests to bug, so you'll have to give up all the quests you are not working on before you can take the quest called A Pill of Baek Munrang, in Hefei.