Hi, I'm on PS4 & I'm having the same problem. I finished "A light in the Dark" & got my Thorn. While still in the Speaker menu, I immediately tabbed open my guardian & dismantled it. When I tabbed back to the speaker the quest banner reappeared but no weapon was there. Now, I can't get the notification to talk to the speaker to go away & when I approach him, the same empty banner shows up. I can press circle button to get to his inventory menu, but u can't clear the notice or the banner. Below is my info. Thanks for your attention! System: PS4 Username: darklordmtt Guardian: hunter