Language Frontend Doesn't Appear

Good morning,
Can someone tell me why the language installed does not appear in the frontend, but it does work in the backend.
I have Spanish and French installed.
And they appear in the top-languages block.
But I add the Portuguese and it works correctly in the backend but the flag to change the language does not appear in the frontend.

Hello

What is your version of the program?

Best regards

Robert

Multivendor 4.11.3

Hello

What is your version of the program?

Best regards

Robert

Hello

Administration->Storefronts->Your storefront->Languages

Best regards

Robert

damn.
I have searched in the hooks, the code, etc ... hahaha
Thank you so much

Hello

Administration->Storefronts->Your storefront->Languages

Best regards

Robert

Hello

You are welcome :)

Best regards

Robert