Twice this has happened now. I have bought an ancient sword from brax and tried using "This Belongs in a museum" on it, only to have it switch positions with my current weapon/orb. I then try it again with the same results, but if I use the skill on anything else its suppose to, it works, but not the sword.
Was it a uniquely named artifact weapon? Some items sound like artifacts, but aren't. Generally artifacts have a comma in their name.
So real quick meant artifact not ancient, and maybe it wasn't a artifact but I'm pretty certain it was. Either way when I get a game going again I will ss it if I come across it again.