The Destiny 2 Challenge: The Shattered is currently bugged and has appeared to have been bugged for a while now. This bounty can be grabbed from vendor Petra Venj in the Dreaming City, and tasks players with finding Toland in Ascendant Challenges, and listening to what he has to say. Doing this should, complete the bounty and reward you with Dreaming City gear and materials, but that hasn't been the case.
Destiny 2 Challenge: The Shattered Currently Bugged
Normally, players complete the quest by completing an Ascendant Challenge, which requires players to consume a Tincture of Queensfoil and find an open portal somewhere in the Dreaming City. After doing that, they can obtain the bounty from Petra and go back to the portal. This time, they should be able to find and converse with Toland, which is expected to complete the bounty. Unfortunately, for many players, the bounty is glitched and won't be completed, even after talking to Toland. It appears that the problem first started popping up a month ago, as multiple posts on the Destiny subreddit seem to indicate.
The Dreaming City recently saw a reprisal of its loot, with the Reverie Dawn armor set and four weapons being un-sunset. Hopefully bugs like this can be patched soon so players grind for the reissued gear without any frustrations.