Switch Language when surfing an e-Commerce product

Hello everyone
I m setting up an e-Commerce an i notice that when i surf into a product an then i press the language switcher to change from English to Other_Language the left side menu links disappears and vise versa
When i surf in a product in Other_Language everything is OK but when i switch to English the English links in the left side menu did not appear.

I create for test instead of a Product content a Page content and i dont have any problem , Languages switching perfect

Anyone have an idea what is going wrong , it looks something in the product content type .

Thanks in advance