Hello!
I had the blacksmith shader on my Titan. It was on the Kiosk (I've checked it).
Yesterday, after login-in, dropped to the Tower and, for my surprise, my Titan was with the "default shader" applied. On the Gear Windows, on Emblems, the shader is there, but gives me a message that I can't apply it because it need to be unlocked. Also, it disappeared from the Shader Kiosk Collection.
I really like that shader and don't seeing myself getting my hands on another one so... can you please help #bungie. Please check the link above for images from my account on bungie.net.