Breadcrumb - Problems with categories

Hi,
I would like to ask a question concerning breadcrumb. In case when I attach an article/post to more than one category, the breadcrumb shows as follows: blog/category1/blog/category2. So it doubles the main category... Is there a possibility to repair it?

Hello,

Did you applied some changes in your breadcrumbs display? Because I cannot reproduce this issue - I've created subcategories and I've used as a post categories parent category and two its subcategories - I didn't saw any duplicated values.