Level missing from breadcrumbs

Hi

I’ve noticed that if I have a folder structure like this (for instance):

Home
>> sub1
>> sub2
>> sub3

and the visitor navigates down to sub3, what they see in the folder breadcrumbs is:

Home
>> sub2
>> sub3

If the visitor clicks on sub2, they are actually taken to sub1; clicking on sub3 takes them to sub2. Is it possible to show the correct names of the subfolders in the breadcrumbs?

Thanks.