Side Menu subcategory problem

Hallo,
i have side menu with click function and if i add category A and subcategory B (A>B) working good and if i add again a subcategory C (A>B>C) for B than not show and cant click on B.
i think i have a css problem, by Mobil work good but by Desktop not work and not show category C.

best Regards
Cebina

Greetings,

The Mega menu on the Pavilion theme has only the top level + 2 levels of subcategory items displayed.

This is by design and is theme-specific.