Hi there, I'm having this same issue, unfortunately. The sound never plays at all. I'm using a stock sound from the game maker, and I set it up like your video shows. What could be wrong?
This is what the audio waveform looks like. Interestingly enough, the sound plays only when the sound is set as the default sound as plays after the text is finished appearing on screen. I've set up the face indices correctly, yet it doesn't play.
