what the title says....
ever since you released HoW this trophy/achievement became unobtainable
well the game supports trophies? yes!
can i obtain the platinum? NO!!!
fix it or i want a refund and compensation for the time i wasted on your broken game
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I can help, as I have actually unlocked this achievement recently at the moment of upgrading my Exotic. Obtain one of the weapons from The Elder Cypher, and fully upgrade it. It will pop instantly. I don't know why it only works for those three, but it is so.