AWS backup plan with advanced_backup_setting triggers MissingParameterValueException exception

Following the indication from the aws_backup_plan, I have an error that I didn’t found when googling when I try to limit the backup selection to the only EC2 :

this works if I comment the block :
advanced_backup_setting {
resource_type = “EC2”
}

but the code presented here fails with the error at the bottom.

https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/backup_plan

provider "aws" {
  profile = "default"
  region  = "us-east-1"
}

provider "aws" {
  alias   = "useast1"
  profile = "default"
  region  = "us-east-1"
}

resource "aws_backup_vault" "vault_local_useast1" {
  provider = aws.useast1
  name     = "ec2-us-east-1-vault"
  #  kms_key_arn = aws_kms_key.example.arn
}

resource "aws_backup_vault" "vault_copy_eucentral1" {
  provider = aws.eucentral1
  name     = "ec2-dr-eu-central-1"
  #  kms_key_arn = aws_kms_key.example.arn
}
resource "aws_backup_plan" "plan" {
  name = "example"
  # name = format("backup_plan_with_dr_%s", var.name)

  advanced_backup_setting {
    resource_type = "EC2"
  }

  rule {
    rule_name         = "example rule"
    target_vault_name = aws_backup_vault.vault_local_useast1.name
    schedule          = "cron(0 8 * * ? *)"

    lifecycle {
      delete_after = "7"
    }
    copy_action {
      lifecycle {
        delete_after = "7"
      }
      destination_vault_arn = aws_backup_vault.vault_copy_eucentral1.arn
    }
  }
  # tags = {
  #   "environment" = "poc"
  # }
}


resource "aws_backup_selection" "backup_selection" {
  iam_role_arn = aws_iam_role.iam_role.arn
  name         = "backup-selection-name-example"
  plan_id      = aws_backup_plan.plan.id

  selection_tag {
    type  = "STRINGEQUALS"
    key   = "Backup Policy"
    value = "1-7-7"
  }
}

Error when I run the terraform apply (NB : plan works fine) :

Error: error creating Backup Plan: MissingParameterValueException: Resource Type or Backup Options is null in Advanced Backup Settings
{
  RespMetadata: {
    StatusCode: 400,
    RequestID: "b9995a41-aad4-40f6-aaae-f727365462c1"
  },
  Code_: "ERROR_4214",
  Message_: "Resource Type or Backup Options is null in Advanced Backup Settings"
}

Version :

$ terraform --version
Terraform v0.13.5
+ provider registry.terraform.io/hashicorp/aws v3.12.0

I’m leaving it commented for now, but I wasn’t sure where/how to report this unexpected behavior.