A Tasty Morsel quest - bugged? {Spoiler}

I have this quest from Charen in The Ruptured Heart - tried a few times but all that happens is he says the line about don't attack until I give the code word, then does his opening line and which point they both sprint off to the portal...

Tried body blocking but all that happens is the 2 of them just stand their doing nothing...

yep, bugged for me too.

Had no problem with it. Edge forward until you trigger the dialogue, and then stop. The point that you have to stand in is very thin, I believe.

Tried again and got it - as soon as the quest updates, don't move...if you move then they run off

This is a very tempermental quest. I attempted it 3 times. First try they ran in portal. But the second and third tries lead to the ghost getting stuck on the path to the portal, he just stands there ,that jerk. Very frustrating.This quest definatly needs looked at by anet for some improvements.