Hi again,
My other issue is about showing full posts in category pages. To remove the “read more” link on posts in category page I installed the child theme from here :
https://colorlibsupport.com/t/remove-read-more-on-all-posts/page/2/
As you can see in the 2 of the 3 news sections, posts who combine text and images/galleries, have trouble showing full content in category page :
http://blanc-sauvage.com/?cat=4&lang=fr
http://blanc-sauvage.com/?cat=3&lang=fr
Click on title to see the real full post.
Thank you for your help!