I can`t see a product in AP

-- HikaShop version -- : 2.3.3
-- Joomla version -- : 3.3.6
-- PHP version -- : 5.2.17

Hi,
I`ve got a problem, I can`t change the symbol of the product. What`s going on?! I`ve duplicated a product but unfortunately I can see only once in my administration panel, but it is in SQL. Please, explain me why I can`t see this product from my administrator panel?

Hello,
Are you sure that :
- You don't have any filter option on your back-end product listing which is hiding you product
- You're searching your product on the good category

Hi,
I haven't got any filter and I searched in every category.

1. Can you show me some screenshots of the issue that you are having ?

2. Did you done some modifications through the files of the "product" view of your back-end template via "Hikashop->Display->Views".