I'm on my second playthrough, in the winter section. During the the final confrontation with David, where Ellie crawls for the machete, most of the sound and dialogue is missing, along with a few of the animations. Then when it's supposed to move into the cutscene where Ellie kills him it sits on a black screen. Any attempt to skip the cutscene freezes the console. I tried deleting the game data and not patching, but it didn't fix any of it.