Zapier - 409 error path/not found

Hi Des!

Thanks for the help. My goal is to add a member to a team folder found in step 1. The error message I get on step 4 is this: argument of type 'NoneType' is not iterable

I kept having to refresh my access token and have since switched over to the new Zapier API Dropbox (Beta) which refreshes tokens automatically. 

I switched the logic flow to the below but am stuck on step 4, but I think step 3 might be wrong too.  Any help is appreciated again. Thank you!

1. Find folder - to search for a specific folder by name
2. API run of get_current_account - in order to find my companies dropbox base folder.
   
3. API call of get_metadata - with the Dropbox-API-Path-Root, and the path from step 1 as a query argument. Code for this below:
   Header added: Dropbox-API-Path-Root:
   

{".tag": "root", "root": "<response_data_root_info_root_namespace_id from step 2>"}

{
    "include_deleted": false,
    "include_has_explicit_shared_members": false,
    "include_media_info": false,
    "path": "<path ID from step 1>"
}

• API call of add_folder_member - to add a specific member to the folder from step 1. This uses the "parent shared folder ID" I from 3 to add the member to the folder in step 1, but I think this is wrong as it should just be "shared folder ID". Code data below:
  

{
  "members": [
    {
      "access_level": "editor",
      "member": {
        ".tag": "dropbox_id",
        "dropbox_id": "dbmid:<memberID pulled from another API call>"
      }
    }
  ],
  "quiet": false,
  "shared_folder_id": "response__data__sharing_info__parent_shared_folder_id from step 3"
}