Unfortunately I’m stuck on RP9 and can’t open your file (Axure, please give me a perpetual license option so I can upgrade!), but if I had to guess, you probably need to make sure your play/pause actions are targeting the right player.
In my code in the original post, there’s this part:
append("<audio controls id='player'>
id='player' part is how you target the sound. So if you have multiple sounds, you probably want to change that for each one to something like
And make sure you’re appending each player to a dynamic panel with a unique name, otherwise they’ll all be the same.