Categories duplicate products

Hi,
I am using version 1.3.3 OC.
I have a problem with the following categories

I have created such a category tree in admin:

[ ] T-shirts
[ ] T-shirts > size 36
[ ] T-shirts > size 36 > Boys
[ ] T-shirts > size 36 > Girls
[ ] T-shirts > size 37
[ ] T-shirts > size 37 > Boys
[ ] T-shirts > size 37 > Girls
[ ] Trousers
[ ] Trousers > size 36
[ ] Trousers > size 36 > Boys
[ ] Trousers > size 36 > Girls
etc...

I Add new product (t-shirts funny)to:
[v] T-shirts
[v] T-shirts > size 36
[v] T-shirts > size 36 > Boys
[ ] T-shirts > size 36 > Girls
[ ] T-shirts > size 37
[ ] T-shirts > size 37 > Boys
[ ] T-shirts > size 37 > Girls
[ ] Trousers
[ ] Trousers > size 36
[ ] Trousers > size 36 > Boys
[ ] Trousers > size 36 > Girls


If I click on store categories on the T-shirts - I have all the T-shirts - its Ok!
If I click on store categories on the T-shirts > size 36 - I have only T-shirts size 36 - its Ok!
If I click on store categories on the T-shirts > size 36 > Boys - I have only T-shirts size 36 for boys - its OK!

Problem:

I add other product (blue trousers) to:

[ ] T-shirts
[ ] T-shirts > size 36
[ ] T-shirts > size 36 > Boys
[ ] T-shirts > size 36 > Girls
[ ] T-shirts > size 37
[ ] T-shirts > size 37 > Boys
[ ] T-shirts > size 37 > Girls
[v] Trousers
[v] Trousers > size 36
[v] Trousers > size 36 > Boys
[ ] Trousers > size 36 > Girls

If I click on store categories on the Trousers - I have all the Trousers - its Ok!
If I click on store categories on the Trousers > size 36 - I have T-shirts size 36 - WHY ?
categories on the Trousers > size 36 > Boys - not displayed! - WHY ?

in the admin panel I created a subcategory Trousers> size 36> Boys, however, does not display it in a shop on the left side of the tree, but it appears in the central window. - WHY ?
If I click in a window on central boys - displaying T-shirts for boys

I think this is an issue of similar names of subcategories, but this should not be because I have to sort the product according to its purpose - how can I fix it?

no one knows the solution?

If you use SEO friendly URL's, check whether you have similar keywords for the products.
If keywords are the same, urls are similar and the system gets confused.

Thank you for helping,
does this mean that every SEO friendly URL's must be unique for each category and subcategory?

DoctorQ wrote:Thank you for helping,
does this mean that every SEO friendly URL's must be unique for each category and subcategory?

You shouldn't need to make them unique. The database stores the query (eg. product_id = 27, category_id = 32, information_id = 2, etc.) Since the product_id, category_id and information_id are unique, it shouldn't make any difference if the keyword isn't. Although, it might be confusing for search engines if they aren't.

Personally, I think the real issue with SEO friendly URLs is more to do with human readability than search engine optimization.