Jyn’s character arc was terrible.
She doesn’t give a crap about the Rebellion. I would expect the rest of the movie to build towards a moment where she finally decides to fight for something greater than herself. But instead, she declares to Saw that she could care less about the Rebellion, and in the very next scene she sees a hologram of her Dad. And then after seeing that hologram, her character now is absolutely dedicated to the cause of the Rebellion and set on finding the Death Star plans.
Sure, the hologram scene was emotional for her, but I would have preferred to not have her entire character arc happen in one scene.
I don’t know why it’s different for me, but Rogue One’s characters were severely lacking for me.