When an audio file is linked in a content, a small player appears next to the link.

There is a problem when several audio files are linked within the same content, a small player appears only for the last link...

Link to file 1 [player invisible
Link to file 2 [player invisible]
Link to file 3 [player visible]

In the HTML code, it seems there is everything for the player to be shown but it is not visible.