Is 'The Lost' Broken?

When I climb up the mountain to Yuge and chuck him off, and jump down into the water, he just disappears, is there somewhere else I need to go to continue the questline?

 

I also encountered this problem, just /class or /fixquests (that one might give you some useless quests items) and then knock of yuge, wait then hop into pond and they’ll be to your right.
If this doesn’t work, TRY IT AGAIN, I tried it 2 times before it worked.