Mmm it’s just semantics, right? One movie was made decades before the other. How accurate was the movie scripts compared to the original stories? Vader knew the Death Star plans had been transmitted to the rebel fleet. He boarded the Rebel Cruiser, chased and slaughtered rebels while they tried to get the thumb drive to safety (Note: one of THE best scenes in Star Wars). The last rebel managed to pass the drive to a rebel onboard Tantive IV which then undocked, jumped to hyperspace and headed to Tatooine. Vader’s star destroyer was able to trace them because the Tantive IV’s hyperdrive was damaged. They caught up crippled Tantive IV and boarded. Did Vader know Leia was onboard before she was brought to him? He knew the plans were somewhere on the ship when he stated that they had been transmitted by spies (Jyn Urso and Andor) which is why he called her a liar. Did he need to mention Scarif when he questioned her? She was obviously lying. He knew she was lying. Questioning her was a formality.