retrace the legendary orbala's path to recreate the horn of the vastiri bug

I have killed the giant and got the flame. Went back and turned in the quest and got the gem but i didnt get the horn.
If i speak with her again she say speak with asala.

I go to speak with asala but she dosent give our say anything.

I have tried to relog, killed giant again, go to the sandstorm again, go to the top of the caravan but nothing happens.

What can i do?

Same just happened to me...

Had same kinda bug, but found out that one of previous quests was bugged and had to be redone (the one with goddess to burn)