The Trail of Corruption quest - Horn of the Vastiri

I received the quest (Trail of corruption) for the horn but decided to go complete my ascension first.
After clearing the ascension trial. I wanted to continue the quest but When i access the desert map it does not lower the ramp for me to enter the three areas, Keth, Mastodon Badlands and Valley of titans. Unable to exit the caravan I am currently stuck and unable to progress. Please Help me Bug report referencee numberr 832, 713 ,916