Wp custom dashicons not working

Hi there,
Wp dashicons is not working when I want to use a custom icon.

It always uses the default post icon when I register post type and try to use a custom icon like this in the Menu icon field : dashicons-upload

Have tried various of icons from here https://developer.wordpress.org/resource/dashicon without any luck.

I use post & loop smart and convert it to regular wp action.