BG Audio trick stopped working

Back again.

In the attached story, I have put triggers in slide one to load the background music module.  Then I put in multiple triggers trying to initiate the music itself, none of them are working.

• Slide-3: Layer-Objectives, when you click on the NEXT button it supposed to start the background music.
• Slide-4 there is another trigger trying to start the music when the timeline starts
• Slide-4 there is another trigger trying to start the music when the timeline reaches 0.5 seconds (I've used this method in the QUIZ that goes with this module and it works perfectly.)
• Slide-4 there is another trigger trying to start the music when the user clicks the NEXT button.

Any help would be appreciated, this course was supposed to go live today.

You can use the side menu to jump to slide 3 so you don't have to sit through the video on slide 2.

I'm also attaching the quiz, where the background music works fine.