@phenomlab it probably isn't provided with the breadcrumb data, so it doesn't render anything.
You can check ajaxify.data in your browsers js console to see what's there.
@pichalite Hmm, is there a way to hide a particular category by modifying the template file?
Here's what I'm doing now, but I was wondering if there is a better way:
$('.categories li div:has(h2 a[href$="CATEGORY-NAME"]) .category-children').addClass("hidden");
@geek NodeBB's template engine can only do true/false and 0/1 checks. You can't do other validations. So, you will have to modify core to achieve that.
If you are OK modifying core then this is the line you want to add the category id check to