Apple Watch HIIT workout prompts

How can I get the HIIT workout voice prompts consistently?

The voice prompts for the HIIT program have been hit and miss. Sometimes I can activate it and sometimes I can’t if I pause a song via my earbud while working out the voice prompts stop mid workout.

I use the HIIT feature one to three times per day 6 to 7 days per week.

I would expect the HIIT voice prompts to overlay any media playing during the HIIT workouts, the same way at the Maps voice, prompts overlays any music or audio that’s being played on the phone.

i’ve tried starting music from my phone and going to my watch. I’ve started from my watch with music and start the workout. I tried starting the workout and then started the music. It’s just not consistent.