Thanks for the link and response, I backed up the save and did as some of the people there mentioned with the blacklist fix and deleting the unused dimensions. Launched again and got a similar result, this time the crash report pointed to enderstorage. So I did some research on that report and found a lot of forums saying to delete the enderstorage folder, which I backed up and then did. Launching now gives me a different result, instead of crashing back to the launcher, the client either freezes at building terrain, or returns to the main menu. From here the client will respond but wont close, and creates a ton of lag. I'm forced to end the java process to get the client to close. This doesn't seem to give me a crash report, and the launcher log for each attempt is close to 100 MB which idk how I would get to you (or if that would be worth reading through). Your help is very much appreciated.