So, I've encountered a strange and really annoying problem: I have fully upgraded three Exotic Weapons (all obtained past 1.2.0) but I have yet to get the PSN Trophy (I'm on PS4). At first I thought it was because the first weapon I fully upgraded, which was Dragon's Breath, was from Expansion 1 and that the Trophy may only include Exotic Weapons from the Core Game only. Since then I have fully upgraded both Thorn and Invective, yet still no Trophy has appeared. Anybody have a solution for this? I feel kind of cheated and any help would be appreciated.