BossJ.1507

So After killing the elder dragon, it asks you to destroy the heart, I destroy the heart and nothing happens. The video continues to play as a bright pink light (the heart is destroyed) and it sits there. My UI disappears / my character can't move, but the entire game is still running, the video is still being animated. I assume there's another video that is supposed to trigger, and it doesn't. How can I continue?