Nuxt 2 + Prismic, API data provided by Prismic not see updates to content

Hello, it's my second project with Prismic (and I love it) & the first with NUXT.
I've some trouble with $prismic.api object,

$prismic.api.getSingle('header_menu')

The response is:
data_BEFORE_token_update

As you can see in the attachment in the dashboard the response should be different.

The only way to have the response updated is to change the access token... This obviously it's not sustainable.
data_AFTER_token_update
How can I fix this problem? Where I'm wrong?

This is only if i run yarn dev command, if I use yarn generate and then yarn start data it's correctly updated.

Thanks in advance.

Hey team, are you using the @prismicio/nuxt kit to query your docs?