Can't fill the tax form

[ASVideo]

Hi, i would like to fill the tax form as soon as possible but i can't.
Infact when i select "Tin statunitense non applicabile" (US TIN not applicable) and then i select my country (Italy) the "TIN straniero" (Foregn TIN) remains greyed out.
I tried with different countries and it's always the same.
So I tried switching the language of the module, i tried on Windows 10, i tried on Windows 11, i tried on Google Chrome, Opera, Firefox and Edge. I also tried with my smartphone.
I tried with different connections (wifi/4g).
And i have the same issue.
I've contacted the support that suggested me just to clear the cache of the browser and restart the PC because they can't replicate my issues. It's like that the form is working good for them.
But it's weird because i tried with different ways to fill this form.
Maybe am i missing something?

[ElianaC]

Hi @ASVideo I'm able to confirm, your case has already been assigned to the tax team, who are investigating the reason why this isn't populating. You should expect a reply from them soon.

Eliana Cerna

Udemy Community Moderator 

[ASVideo]

I hope so. Because i need to fill it before the 1st payment.