I lost a Drain Key on PS4. This was after hearing it was for "making a new character" or playing a different one that is not level 20. I created 2 characters at launch and did not create any between finishing the raid and losing the key. I also did not play the other character at all. All in-game time was spent on my Titan that lost the Key. Sure, I'd love to see the actual fix or reward; but just so you know the problem is not just creating a character. Again, I had not done so and lost my key.