Azura's cut scene in the "Cavern of the Incarnate" will not play

When you enter the cavern of the incarnate, a cut scene involving Azura is meant to trigger when you pick up the moon and star ring, as seen here in the original Morrowind: http://www.youtube.com/watch?v=6Qk-QN7cRgY&t=1m8s

However, this cut scene does not play in Morroblivion, as seen here: http://www.youtube.com/watch?v=ph2rizkb_So&t=0m54s

Furthermore, the Bink video for this cut scene is installed when Thermador's Complete Installation pack is installed. It can be found in Oblivion/Data/Video/mw_cavern.bik

As far as I am aware, this is the only cut scene that will not trigger in the game. All others cut scenes work i believe.