I linked a picture of this, but I just recently completed the quest line for Sai Mota's necklace, and the game is telling me to collect my reward from the chest in the Enduring Abyss. However there is no chest there. I already completed the quest line on another character and collected the reward from the chest on that character, and I'm guessing that's why I can't collect it here. Either way I wanted to complete the quest on this character as well and continue going through the other quest lines. I tried everything I can think of up to this point, from leaving the moon and going to another planet then back to the moon to reload, closing Destiny and restarting it but nothing seems to have worked so far.