I kept an extra Battle Driver and Devil Tooth in my bank until I saw the latest patch notes: “Addressed a reported concern where weapon trinkets would disappear from the collection after relaunching the game in the Bounty of Blood campaign add-on”. So I went to claim them, and yet they still disappeared on me after quitting the game completely and opening again.
The Devil Tooth is especially egregious since it’s rewarded for completing all the Skin to Win hunts. You have to do them all over again on a different playthrough or character. This will have to be my third time if I really want it.
…and while we’re at it, the vanished Vapor Hoodlum trinket from a couple months back is also still unaccounted for.