CPT Category Not Displayed

I am trying to display categories as a dropdown with a Categories (Custom Post Type) widget. The taxonomy I’m looking for doesn’t display in the dropdown list – although there are several others in the list: Categories category, Category element_category, & etc.

Also, I can see the taxonomy I want (Categories visit_category) in the Tag Cloud (Custom Post Type) widget – but not the Categories widget.

I checked the Add/Edit Taxonomies settings in CPT UI, and everything looks as expected there. Any ideas?

The page I need help with: [log in to see the link]