There is playerdata and playerdata-mca, playerdata is the one that says: 346ed8c1-7bcf-4bf5-bc0d-fc80650dbbfa.dat, NicksBigWorld.baub and NicksBigWorld.baubback. So do I just rename playerdata and backup the playerdata folder?
Do you mean to reinstall the pack? I just did. Nothing changed. And how do I: "if possible get your player location set to the spawn point in the world since its a rendering issue".
Download level.dat and session.lock, create file in .minecraft saves file and call it what you want. Place downloads in file. Create region file in save file. Download all mca files inside region files on website, and put them in region file in save file. Now you are done! ENJOY!
BTW, before, I was using 240 mods with 6 GB and it worked fine. but then I stopped using modpack and tried other mods an it did not work. Also I'm still trying the game with some mods out to see if it would work any better.