Player doesn’t take all mp3 files

Hello,

I’m testing the plugin on one of my sites.
The problem is, the player does only take two from 5 songs. In the Backend it shows me all five (see Screenshot https://www.gainelri.at/scheinys/downloads/screen1.png )

In the frontend it only shows two of the five songs. see: https://www.gainelri.at/scheinys/?page_id=1150