I don't know how, but the CodeChickenLib-1.7.10-1.1.3.138-universal that CodeChickenCore auto downloads is not the same as the one that it originally downloaded, and the file that it is downloading now is just causing any modpacks created with it to auto-crash, yet if I copy over and replace the CodeChickenLib-1.7.10-1.1.3.138-universal from an older modpack that I have downloaded the packs start working again.
Please fix this as soon as you can