I've recently recieved Adobe Acrobat Pro 2020 and added some mp3 to my PDFs. When I open my PDFs in the Acrobat Reader, it does not show any audio control buttons like play, stop, etc. (see picture)
Also when I open my file at work in the Acrobat Reader I can't even play my mp3 - I just see a green line on a black background and hear no sound. Playback works at my laptop in the Reader and the Pro version.