The whole dispute was about a moment that occurs towards the end of Star Wars: the Force Awakens. Rey, Chewbacca, and other resistance fighters returned from their mission to destroy Starkiller Base. The last operation that cost Han Solo his life. As they come out of the ship, Rey is given a comforting hug by Leia, while poor Chewbacca receives no such sympathy, despite the history that Leia, Han, and Chewie had in the Original Trilogy.
"That was probably one of the mistakes I made," Abrams admits. "My thinking at the time was that Chewbacca, despite the pain he was feeling, was focused on trying to save Finn and getting him taken care of. So I tried to have Chewbacca go off with him and focus on Rey, and then have Rey find Leia and Leia find Rey.”
"The idea being that both of them being strong with the Force and never having met, would know about each other--that Leia would have been told about her beyond what we saw onscreen and Rey of course would have learned about Leia. And that reunion would be a meeting and a reunion all in one, and a sort of commiseration of their mutual loss.”
"Had Chewbacca not been where he was, you probably wouldn't have thought of it. But because he was right there, passed by Leia, it felt almost like a slight, which was definitely not the intention."
Recently it was confirmed that The Force Awakens would be available in home video form from Disney Movies Anywhere on April 1, Blu-ray and DVD will be available on April 5.