Board Thread:Bug Reports/@comment-73.215.101.112-20160822171954/@comment-26410366-20160822172539

This is because of chunk loading. Minecraft is organized into chunkc of 16 x 16 blocks, and only the ones near the player and spawn are loaded. While in an unloaded chunk, nothing happens. Mevans can't really do anything about this, you just have to deal with it.