required attribute is unknown for ValidateConfig?

Using the terraform plugin framework. I have this (simplified) resource schema:

why default attribute must also be computed?

I’m using the terraform plugin framework.

why default attribute must also be computed?

I’m using the terraform plugin framework.

why default attribute must also be computed?

I’m using the terraform plugin framework.

why default attribute must also be computed?

I’m using the terraform plugin framework.

why default attribute must also be computed?

I’m using the terraform plugin framework.

why default attribute must also be computed?

I’m using the terraform plugin framework.

why default attribute must also be computed?

I’m using the terraform plugin framework.

is it possible to validate multiple resources?

I’m using the terraform-plugin-framework.