Well, the situation is the same. The movies don't work, but the rest of the game plays fine. I don't know anything about how these kinds of videos work in unreal, so my first instinct for a fix might be on the wrong track - I might need to convert them to a different video codec, but I wouldn't know. Do you know more about how this works and what I should do about it? I'm currently running the game through proton, if that helps.