My project suddenly stopped building. And even though I'm not comfortable with the whole process yet, https://wow.curseforge.com/packager gives me the message "There was an error displaying this markup. Please report this to a moderator." Where as a couple of minutes ago it was a list of builds.
Oh, I think see your problem. You're using the web page to tag the repository, which doesn't actually work with Git or Mercurial, though from what you're saying you actually managed somehow. I see that you then changed the packaging mode to None, which would ignore all pushes. Afterward, you changed the package type to Beta and Release, which would ignore all Alphas.