[Bug]: Provider produced inconsistent final plan

[lusche]

Terraform Core Version

1.3.6

AWS Provider Version

v4.48.0

Affected Resource(s)

aws_wafv2_web_acl

Expected Behavior

When I change something in the managed_rule_group_statement it should apply without error.

Actual Behavior

I tried to change from excluded_rule to rule_action_override. This works in most cases. But it looks like any changes in the managed_rule_group_statement results in an error if you use the AWSManagedRulesBotControlRuleSet.

Relevant Error/Panic Output Snippet

│ Error: Provider produced inconsistent final plan
│ 
│ When expanding the plan for aws_wafv2_web_acl.sge to include new values
│ learned so far during apply, provider "registry.terraform.io/hashicorp/aws"
│ produced an invalid new value for .rule: planned set element

Terraform Configuration Files

resource "aws_wafv2_web_acl" "bug" {
  name        = "bug-report-waf"
  description = "bug WAF for env: report"
  scope       = var.scope

  default_action {
    allow {}
  }

  tags = {
    Environment = "report"
    Name        = "bug"
  }

  visibility_config {
    cloudwatch_metrics_enabled = true
    metric_name                = "global-waf"
    sampled_requests_enabled   = false
  }


  # Start: Rule 30
  # Kostet! 
  # https://aws.amazon.com/de/waf/pricing/
  # 10/montat + 1/mio req
  rule {
    name     = "aws-BotControl-RuleSet"
    priority = 30

    override_action {
      none {}
    }

    statement {
      managed_rule_group_statement {
        name        = "AWSManagedRulesBotControlRuleSet"
        vendor_name = "AWS"

        excluded_rule {
          name = "SignalNonBrowserUserAgent"
        }

#        rule_action_override {
#          action_to_use {
#            count {}
#          }
#
#          name = "SignalNonBrowserUserAgent"
#        }

      }
    }

    visibility_config {
      cloudwatch_metrics_enabled = true
      metric_name                = "BotControl-RuleSet"
      sampled_requests_enabled   = true
    }
  }
  # Ende: Rule 30

  # Start: Rule 100
  # OWASP Top 10
  rule {
    name     = "aws-common-rules"
    priority = 100

    override_action {
      none {}
    }

    statement {
      managed_rule_group_statement {
        name        = "AWSManagedRulesCommonRuleSet"
        vendor_name = "AWS"

        excluded_rule {
          name = "SizeRestrictions_QUERYSTRING"
        }

#        rule_action_override {
#          action_to_use {
#            count {}
#          }
#
#          name = "SizeRestrictions_QUERYSTRING"
#        }

      }
    }

    visibility_config {
      cloudwatch_metrics_enabled = true
      metric_name                = "aws-common-rules"
      sampled_requests_enabled   = true
    }
  }
  # Ende: Rule 100

}

Steps to Reproduce

• Run the provided Config. This should create a WAF2 with 2 AWS manged rulesets.
• change excluded_rule to rule_action_override in the managed_rule_group_statement in the rule: AWSManagedRulesCommonRuleSet (is prepared just comment and uncomment)
• run again. Works fine for me. No error
• change excluded_rule to rule_action_override in the managed_rule_group_statement in the rule: AWSManagedRulesBotControlRuleSet (is prepared just comment and uncomment)
• run again. Produces an Error

But if you:

• destroy WAF via terraform
• run code again and it works fine.

Debug Output

No response

Panic Output

No response

Important Factoids

No response

References

No response

Would you like to implement a fix?

None

[github-actions]

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[ewbankkit]

@lusche Thanks for raising this issue.
It has already been noticed in #28191. I'm going to close this one as a duplicate so that we can concentrate discussion in the linked issue.
Please add any additional comments there.

[github-actions]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.
If you have found a problem that seems similar to this, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.