The {{breadcrumbs}} doesn't show category?

The {{breadcrumbs}} always rendered following on article pages:

Help Center Name > Category Name > Section Name

I have noticed in at least two help-center that, the behaviour has changed, it now renders to:

Help Center Name > Section Name

I am wondering, is it intentional change, or a bug? In both cases it breaks help-center which relied on category to be in breadcrumbs for many reasons (educational, content hierarchy, technical).

Can someone else confirm this? 

I have already submitted a support request for one of zendesk subdomains.