Hello @barceloch
My apologies for the inconvenience.
There are different possible causes for the issue you describe, from players misconfigured, plugin conflict, or the website cache configuration. It may be related to the server configuration (folder permissions, the PHP allocated memory is not enough to generate the demo audio files, etc.) between others. Detecting which one is occurring on your site is quite difficult if it is hosted locally.
Please, include a screenshot of the player settings in any of your products. Furthermore, check the source of the public product’s page (by pressing CTRL+U), and let me know if the <audio>
tags are present.
Best regards.