My sister and I were playing split-screen in minecraft. We were in creative mode packing things in chests we will ned when we go into survival mode. I was packing some Cobblestone, and the weirdest thing happened. The chest broke. My sister was far away building a home. I was packing chests. I pressed the "Back" button on my controller to see who was in the game. It was just me & my sister. All of the sudden I saw a blue gamertag just floating around me. I started freaking out.! All my chests were suddenly disappearing.
Does anyone know what was happening? I assumed it was Herobrine.