Product categories on 1 levels, some categories not showing

-- url of the page with the problem -- : www.wevalgo.com/index.php/en/services-ch...ervices-organisation
-- HikaShop version -- : 3.3.0
-- PHP version -- : 7.2

Hi,
I am using Product categories on 1 levels module to select the products by category.
Some categories work well (when a product is in the category, we see the category displayed in the menu, with the right number of product in the category); but some don't (category doesn't show).
See enclosed screen shot 1: there is a category in the "wealth management" category, but we can't see it; please note that on the upper part 'select assessment by analysis depth' we have 26 products, but only 25 products on the bottom menu). I have tried to put the product in other categories and sometime it works, sometime not.
screen shot 2: the product/category tree with the product that doesn't work


kind regards

HI,
I found the issue, in the module categories on level 1, the limitation came from the nb of rows in the hokashop options tab/items section. It limits the query on the category with the number of rows.
I put a very high value.
This may look obvious when you know but not so much before; maybe something to highlight on this web page?
kind regards