Course Presentation - Audio display

When adding audio to the Course Presentation, if I select Player Mode: Full the audio shows up as an arrow in a square but full controls are not displayed. If I choose, Player Mode: Minimalistic a Play/Pause buttons show, but full controls are not displayed.

Embedding the Course Presentation in LearnDash. Particulary an issue on a mobile device or smaller laptop.

Operating system: MacOS 12.2.1

Browser: Safari 15.3

H5P: Version 1.15.4

LearnDash: Version

NOTE - same issue when using Chrome