products in (only one) subcategorie not displayed

-- HikaShop version -- : 2.6.2
-- Joomla version -- : 3.5.1
-- PHP version -- : 5.6.19
-- Browser(s) name and version -- : ALL
-- Error-message(debug-mod must be tuned on) -- : No products displayed in sub category of one Menu

I have a site that's already long alive. However topday I noticed (so don't know since when) that one ONLY ONE menu item you can see the subcategories (images) but if you click that subcategorie ALL items are missing so no products dispalyed (Kimono's & Accessoires >> All subs)

I searched for hours, and checked all settings against other catogories en menu's that are working. But It seems they are all setup the same way.

What is going on? And how to solve? Help please, my client losing sales at the moment.


So Subcategories are displayed:

It was a long search, also made a copy of a working menu but that didn't help also, strangly.

After that I checked again, also all tab settings (div, listing, etc) and finally there was one item set differently, probably by someone else. After that it was fixed. Sometimes something simple can be a loooooot of woooork.

Anyway, working again, and thank for your response.