Strange problem in checkout page

Hello
the dropdowns in checkout page (country and state) are duplicated.
More precisely the selected value is duplicated in a span just below the dropdown

There is also a field “Company name (optional)” that is out of his place

please see
https://faqir.tinytake.com/tt/Mzc2NTUyNF8xMTQ3ODAwNQ

I have temporary solved hiding the duplicated fields with
span.select2-selection.select2-selection–single { display: none; }

but it is a work around, not the solution

Everything has just been updated.
Enfold version is 4.6.2
WordPress version 5.2.3
WooCommerce version 3.7.0

Thank you
Mauro