Terraform keeps trying to add parameter to cloudflare_worker_route resource

I have created a cloudflare_worker_route resource using Terraform and have specified an existing script name. Terraform created the resource perfectly, but now terraform plan and apply wants to keep setting the script_name argument even though it is already set in Cloudflare. Why is this happening and how can I resolve this. In the image below, the right side you can see that the worker script entrust-validation is already set, yet on the left side of the image, terraform keeps wanting to create (or add) that script_name to the worker resource. Terraform should not be wanting to change anything. See below (I have redacted sensitive information from the image)

Terraform Doc: https://registry.terraform.io/providers/cloudflare/cloudflare/latest/docs/resources/worker_route