Jsondecode produces no output and no error

Terraform
8 
provider "azurerm" {

    features{}

}

locals {

      resource_groupname = csvdecode(file("./ResourceTypes.csv"))

      json_data = jsondecode(file("${path.module}/Monitor.json"))

    }

    resource "azurerm_resource_group" "Main" {

      count    =  length(local.resource_groupname)

      name     =  local.resource_groupname[count.index].resourcetype

      location = "North europe"

    } 

     resource "azurerm_resource_group" "json" {

       # (other settings)

       name = local.json_data.name

       location = "North europe"

     }

      output "local_json_data" {

        value = local.json_data.name

      }

when I use the name property from the JSON object as shown in the above code, its returns an error.

╷
│ Error: "name" may only contain alphanumeric characters, dash, underscores, parentheses and periods
│
│   with azurerm_resource_group.json,
│   on Monitor.tf line 15, in resource "azurerm_resource_group" "json":
│   15:      resource "azurerm_resource_group" "json" {