I play split screen on PC. There is often times an issue where during dialogues, some characters won't have audio. Most often this is the narrator. The subtitles will be there, and it's clear that she's meant to be talking, but she isn't. Other times it'll be another character who will start to say something, but very very quickly their voice will fade out for the rest of the conversation.
It can be super frustrating, especially because the narrator does such a great job and it sucks to just watch characters oddly change facial reactions.