I have 2 root categories and subcategories in every one of them.
One of root category(Default Category) and sub categories are showing on navigation menu. It's OK. That's what I want.
The other root category (name: Collections) is not showing in navigation menu and I can't access any collections's subcategory's page. It's getting 404 error.
I think it's related to
System > Manage Stores page root category settings. It's saying Root category is default category.
So If you understand what I mean, how can I access not-default root category(Collections)'s subcategories?