Audio Player not working while in template

Hi,

the Audio-Player widget works fine, if the widget is directly used at a page.
If i use Audio-Player widget in a template and put this in a page, the backend is working, but at the preview or the public site not!

This means: something interferes if the Audio-Player widget is not directly in the page. I use many other widgets in templates (video etc.) and those where working. Only the Audio-Player widhget don’t do.

Thank You!