Do you have ghost chunk loaders from This? Would you like a solution? Well here it is!!! In chat, type: Go to the location, and place the corresponding Iron or Gold block, Then break the block. Profit! Some additional Information About Ghost Chunk Loaders. Any time a Chunk Loader is removed not by you meaning it directly it will cause ghost loaders. THis includes but is not limited to: Multiple block mining (Think Tinkers Hammer or Staff of Power) when the chunk loader is not the main block you are mining. World Resets. (So if you are loading a chunk in the nether and it resets. Draconic Evolution Island Explosions. Edit #01: Added Additional Information.
Do you suffer from unloaded chunks? Slow processing? Chunk loading is your solution! Thanks Booker for providing this information.
LPT: All machines not chunkloaded by a chunkloader run at a slower speed if they're outside of a 16 block radius from the player, this INCLUDES y level, meaning you should probably add chunkloaders if you're using IC2 windmills