Ok, so that confirms it. When you click on the golden gear and key, it pulls up a page with a link to "subscribe". In order to move forward to Chapter 2, you have to either follow that link (or go to their main website) and go through the process of subscribing. Once done, the additional chapters will be unlocked for all of your characters.
If you have any other questions on this specifically, since it's not a glitch, jump over to Pt. II, where lots of us asked about the topic of subscribing as the updates were rolled out.