Are you sure you're doing it right and you're in the right map? It worked fine for me, and unless Nexon screwed up that map in patch 0.40, then it should still be the same. When you enter the map, just keep on pressing up while moving to the left, and then you should get to a warp that takes you on top of a cliff. As you jump off of it to the left, you should pass by a pole. Pass by it, and pass by the next one also, and then climb up the one after that. Press up twice when you're at the top. It should work, because that's what I did, and it worked for me. But if that doesn't work, then I'm not sure what's happening.
At the map after that, the sequence of teleporters to use is middle-middle-right-left-right-left-middle.