Hi Luc,
Thanks for the follow-up.
Yes, the breadcrumbs show the category to which the article is directly linked. It doesn’t go through the tree of categories.
Perhaps you can take a look at the function in charge of the breadcrumbs and see if you can add some filter or action to modify the results. The function name is nice_breadcrumbs() and can be found in /engine/theming/functions.php
It’s really strange that you are not getting the emails. What email provider are you using? Perhaps they are filtered to the spam folder? (we use a sending service to avoid that).
Best,
Juan.