As can be seen from the pictures, the player in question does, indeed have a Thorn and has it equipped, however, the Thorn grimoire is still showing as not acquired. [u]This issue is currently not in the RoI Known Issues thread and should be added, since this is proof positive that it is an issue.[/u] I've removed most of the player's name as per Bungie's policy on not sharing names, but tried to leave enough so that you can tell it is the same player. The player seemed to be having difficulty on figuring out how to post a picture, so I took screenshots from my computer of their character and grimoire.