Portfolio categories not working correctly with names containing commas

Hi dear friends,

For some reason the portfolio filter categories are failing in the theme:

You can see in this page:

https://temp.smartgift.mx/tiendas/

The category “Tabacos, Vinos y Licores” is setted like this:

But when you look at this page the portfolio content here: https://temp.smartgift.mx/tiendas/ there is no item on this portfolio:

(Tabacos, Vinos y Licores shows empty)

But if you click on the portfolio category for this category there are some items:

https://temp.smartgift.mx/portfolio-category/tabacos-vinos-y-licores/

Any help?

Thanks.