Only first Category is getting the "current-cat" class

I have some CSS in my Child Theme to turn the current category red. It works, but for some reason the plugin only classifies the first category in my selected categories with the “current-cat” class.

#CaseStudy_Sidebar ul li.current-cat div.avhec-widget-line a {/* Makes current Case Study post's link red */
	color:#E14F55!important; /*Red*/
}

Works here:
https://dev.boscobel.com/appian/

Not here:
https://dev.boscobel.com/citrix-public-sector/

https://www.ads-software.com/plugins/extended-categories-widget/