Thx for the comment, I'm the team's dev. Thx for reporting me this bug... I tested it and it seems in new files it will start working after in the settings you just mute it with the buttons (in that case it will just turn it on, for the first time) .
I will do my best to resolve this issue, and there would be an updated version to be played. I don't want that to be a subject for the review of the jam, so I think it will be available after the review time, or as a separated file.
Still hope you liked it, sincerely, from me and all my team