Hello Laurent,

i am not from the support staff.

This is a known issue "16859, 16988", but no workaround or quick-solution at the moment.

You can try and switch the default template to the joomla default template "cassiopeia" and edit a page.
If the problem disappears, it is a override problem of a template addon. "as of 16988"

Hello Rashida,

I override article.php and all seems fine ;o)

Thank's for your express assistance.

Best regards.

Laurent.

Hi Laurent,

Glad that it helps and you are always welcome:)

You may accept the most useful answer in order to close the post.

Best Regards