Can you point out exactly what kind of problem you're having, my head is getting tired of trying to fix my problems and yours.
So I've lost myself in a jungle of threads with problems and fixes and what not
Did you edit the CodeChickenCore.cfg-file recently? Because that seems to be the problem.
Or else try to delete the whole AotBT-folder (backup your worlds) and re-download it.
When you're inside the Hats mod selection menu, click the little cog thingy and there should be an option to change the hotkey.
Ouch... Try cutting it in half and make two pastebins?
So, I'm trying to add Forestry and Thaumcraft, but every time I try to start the modpack it starts as it would normaly, but after 30-40 seconds it exits and reopens the launcher.
Am I missing something here? lol