The Crota's End chest in the abyss (AKA the thrall maze) has been moved to be immediately after lantern #2. After hitting lantern #2, but still facing the way you were running to it, head left to the wall, continue forward along the wall and the chest should be in the next room you see. Just a little FYI for anyone searching for the accursed thing. Hope this post helps. ; )
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Door 3. You're welcome.