Forum Discussion
Sorry to hear you've run into this setback!
Testing the behavior on my end, in the current version of Storyline 360, I was unable to replicate the same issue. After adding an audio file to my Master Slide, and applying the layout to subsequent slides, the audio played as expected. If you've confirmed that you are working locally, and repairing your Storyline installation doesn't fix the issue, do you mind sharing the .story file for testing on our end?
Feel free to upload a copy here in the discussion or privately through a support case.