I figured it out when you unzip the file mac uses Archive Utility as default which for some reason breaks it. Right-click the zip file and open it with Unarchiver.app and then it should work hopefully.
Hey, follow the instructions on this vid. Such an annoying problem!! I was on chat with Apple today to see if there was an official way to fix, but there is not. Anyhoo, this seems to work well, for now:)
