What felt like the most "near-universe-breaking" things in both Legends and New EU? The events/characters/objects/history/etc that felt like they almost broke the believability and verisimilitude of the Star Wars universe? Over the years, it seems like the biggest instances of this have been: * Dark Empire having it so Palpatine never really died in ROTJ (Old Canon) * TCW having it so Maul never really died in TPM... even if the execution was good once you accepted Maul didn't die, just the fact that he survived is still near-universe-breaking to many (Old Canon and New Canon) * TCW's introduction of the Mortis Trio (Old Canon and New Canon) * how The Last Jedi handled Luke Skywalker (New Canon) * Daala becoming legitimate Chief of State, with the galaxy calling her a "common-sense" choice for a "unifying" figure, in Invincible (Old Canon) * Mortis becoming relevant to the Abeloth storyline suddenly, and the way it was handled (Old Canon) * How canon kept changing the reasons why Jacen fell to the dark side despite him being a point-of-view character when it happened, including retconning Vergere into a Sith (Old Canon) * the Hyperspace Ram in The Last Jedi, why it's not used more often (New Canon) * how the Sequel Trilogy has handled the New Republic, the First Order, and the state of the galaxy so far, with poor on-screen explanation of the transition from ROTJ's ending to the Sequel Trilogy (New Canon) * the survival of Ahsoka and Ezra in New Canon, as well as various purge survivors in Old Canon too (Old Canon and New Canon) * the off-screen evolution of Jacen, Luke, the New Jedi Order, and the state of Coruscant and the galaxy overall, between The Unifying Force and The Joiner King (Old Canon) * Luke rejecting the idea of redemption in general, and most characters moving quickly from "ignore and excuse Jacen" to "Jacen must be killed at all costs" in Legacy of the Force (Old Canon) * the off-screen sudden Corellian patriotism of Han, and Leia going along with it because it was "Han's turn," in Betrayal, with no consequences later (Old Canon) * the off-screen evolution of the Jedi and the galaxy between the more unique Tales of the Jedi to the PT-imitating Knights of the Old Republic . . . . and the Legacy Jedi, the Je'Daii, and other incarnations of the Jedi throughout their long history being too similar to the PT Jedi even when it didn't make sense, similar with the Republic and galaxy in general (Old Canon) * the Yuuzhan Vong's relationship with the Force in The New Jedi Order, and to a lesser extent the special nature of the ysalamiri (Old Canon) * Waru, the Anti-Force, and other related Pre-NJO weird stuff (Old Canon) Again, I don't personally agree that all of the above almost broke believability, but they are common sentiments I've heard over here throughout the years. What are some others that you remember throughout the years? And which of them felt like the most "near-universe-breaking" things to you?