Missing "Last Good-Bye"
After you finish the fight with the statue, after the conversation, in the instance, you should talk to rox again and she gives you the Pile of Phantasmal Residue. So you have to redo the instance or hope that A-Net does change something within the next patch and you can get it elsewhere.
And be sure to do it solo with your alt. I was first with my alt in a group and could not talk to rox myself.
Greetings.
I have not done it myself, so I am not entirely sure about it. Buuut I think (after following different topics here) that you have to talk to Rox before leaving the instance when you redo it after the first time. Seen people say that it is much too easy to miss and I am sure I would too if I had not been hinted to it here… once I do get to redoing it.
Maybe try and contact support about it?