Hello, Forums!

I'm currently playing The Elder Scrolls V: Skyrim on the Xbox One S and have reached the very early point in the Dawnguard DLC where I have to take Serena to Castle Volkihar to meet her parents, and... nothing's happening.

I've reached the castle gates and the watchman is simply telling me to leave. Also, Serena was supposed to tell me to be quiet while she speaks to the guard, but I never received that bit of dialogue.

Help?