Star Wars: The Rise of Skywalker left some frustrating unanswered questions and plot holes as it wrapped up the Skywalker Saga.Fortunately, Star Wars has a rich expanded universe that has resolved some of those issues, such as whether Kylo Ren actually lied about Rey's parents, how Palpatine actually returned and who all those Sith followers were.That's just a handful of the things we've discovered since The Rise of Skywalker's release, and now we have another one to add to the pile.Remember