In Avengers: Engame, Nat and Clint were the ones assigned to get the Soul Stone. However, they seem to not know how to get the Soul Stone and even get to the point where Clint doubted what the Red Skull said.
How did they not know?
Because Nebula was with them and she was there when Thanos went to Titan. She was even the one who concluded and told Quill, indirectly, that Thanos probably sacrificed Gamora in exchange for the Soul Stone, or at least that's how I understood it based on their conversation in the previous movie.
Did I miss something here? Or did I just misinterpret something?