Huh Houston, we've got a problem !
The menu "cateroies" dont appear in the event manager menu.
On the edit page, i have an empty "category" widget.
Suppose a theme conflict. There is a custom taxo (portfolio) defined but totally different should not interact. Did i missed something ?
Multisite, global tables active.
Categorie menu DOES show up on main site (on an Elegant theme).
Theme goldenway ( ;) )
Thanks for tips.