AceOfAces,
Okay you are exactly right, I found out the issue was that the tool needed me to supply a temporary folder path for the cache. I'm not sure exactly what that is, but I provided a file path for it and I am now able to save my project settings.
However, for some reason now I can no longer edit my Game Executable or Bootstrapper information in the Customization tab, the section has become grayed out. Do you have any advice on how to enable this?
Nevermind I figured this out haha, I had to select the "replace executable information" checkbox, my bad there.
Thank you for the assistance!