As it would turn out, I flew out to the quarry land area (took 6 minutes, lol) and just loaded the chunks in as I approached, as opposed to suddenly popping in on everything. One of my more retarded friends also thought it'd be a stellar idea to place 3 massive quarries right near the load area, where he incinerates every basic building block by dropping blocks into a 3x3 square of lava.
Not sure if it is a good idea to do that and if it is to blame or not, but either way, we figured it out.
I appreciate the help bonfire01, you sparked the idea to do what I did in the first place.