Multipe authors issue

Hi,

There is a problem with multiple authors.

The “first” author (the first entered in a post) has his name display well on is author profile page.

But this is not the case for second or third author.

For example, this page has to display “Veda C. Storey” and not “Roman Lukyanenko”:

https://metascience-fr.sopromet.org/author/vedastorey/

Is this a known problem?

Thanks,

Fran?ois

The page I need help with: [log in to see the link]