[Plugin: WordPress SEO by Yoast] Custom meta descriptions

Hello

WordPress version: 3.3.1.

WordPress SEO has been installed last week to allow us to customize title tags and meta description individually.

Custom title tags work fine.

But when we enter a meta description, it doesn’t show up, instead it’s still the default description.

Example :

http://www.stlazareparis.com/horaires-et-acces/

Does anyone know if we forgot to do something for it to work?

Thank you
Nadir

http://wordpress.org/extend/plugins/wordpress-seo/