Reza Manouchehri

Thanks A lot for your guide.

Thanks a lot @shameemreza, @serafinnyc

Hello @shameemreza
I disabled all plugins and switched to my default theme, But the problem still exists.

Hello @serafinnyc
You are right. I’m new to WooCommerce, Add-ons is my primary category. I used to think if I chose a child category, I should also choose its parent category too. Now I only choose Add-ons and update my product. my breadcrumb is being shown in the correct way now.
Image: https://paste.pics/be448e46069efafcb95a8ed51912b586

I have other child categories that are selected as the primary category, but they are shown after the parent category. for example, here “Prints” is my primary category and it’s shown after “DIGITAL PRODUCT” because it’s ordered in alphabetic default.

DIGITAL PRODUCTS, Prints

Image: https://paste.pics/98d5999f2e81ec8e6df7caf830d797e7

I can’t change my primary category because the child category is the related category for my product, but I did it as you said. I checked “DIGITAL PRODUCT” as my primary category and this problem still exists.
I also have another parent category called “PHYSICAL PRODUCT”. I created a child category called “Accessories”. This problem happens to it too. It’s shown this way in the WooCommerce products page: Accessories, PHYSICAL PRODUCT
This problem happens whenever the child category has alphabetic letters that are ahead of the Parent category alphabetic letter.
Is there any snippets code to disable this alphabetic ordering?