Hello. I had an issue on FTB Ultimate 1.1.2 (Clear modpack, no addons) where i did explore ALOT (8000+ blocks) from the overworld at once flying on creative world, the next time i loaded the world it took me 30-40 minutes to load up...Why is this hapening? Im afraid because i have survival world, and i dont want to explore more than 1000 blocks in 1 direction. Is this only for the overworld? Do the nether, the end and mystcraft ages have that issue? My computer is pretty beasty, so its not from it ( Assassin's creed 4 w/h no lag). I gave Minecraft 2 gb ram. Is that enouth?