I have been playing on my world for a little while now and one of my biggest accomplishments was getting a full set of every type of armor. Today my friend and I were planning on going to a sea temple so I went into my armory to get some armor for the first time since I completed it. When I walked in the entire diamond set of armor was gone and so was the armor stand. The set wasn't anywhere around the building, on the ground, or just anywhere at all. I do not know what has caused this but I am positive it is a bug since I own the world and it was there when I left the game but gone when I logged back in(never any mobs in the area or any players).