When I was building a roller coaster, I first saw a black block and it disappeared. Then I saw a flame as if it was a fireball in the distance. When I was continuing, I saw a small "flame" near me as if it was a fireball in the distance but near me. Why is Minecraft doing this? I can't really post the images because they happen too quick. I know it's not me because it never happens in real life, just on the minecraft screen. I have a HD texturepack (resolution: 36x36), MCPatcher to support it (all boxes checked), four gigabytes of RAM, and a sixty-four bit Java system, and the latest version. For some reason this only happens in one world, at least I've only caught it in one world.
Strange flashes of random actions