Can't retrieve file count or file listing

I have no problem getting a token. With that token I can submit 

/2/team/token/get_authenticated_admin and get the admin info. From there, I can submit 

/2/users/get_current_account, passing the team_member_id I got from the previous api call.

One of the items passed back is:

"root_info": {
".tag"
:
"user",
"root_namespace_id"
:
"2617xxxxxx",
"home_namespace_id"
:
"1787xxxxxx",
"home_path"
:
"/Mariah"
}

I have no issues with this:

curl -X POST https://api.dropboxapi.com/2/files/list_folder \
  --header 'Authorization: Bearer <mytoken> \
  --header 'Content-Type: application/json' \
  --header 'Dropbox-Api-Select-User: dbmid:AACFxxxxxxxxxxxxxxxxxxxx' \
  --data '{"path":"/kickee images","recursive":false,"include_media_info":true,"include_mounted_folders":true}'</mytoken>

From that, one of the returned items is:

{
      ".tag": "file",
      "name": "OSD78-3-K-YRC-VS-alt2-YAL.jpg",
      "path_lower": "/kickee images/osd78-3-k-yrc-vs-alt2-yal.jpg",
      "path_display": "/KICKEE IMAGES/OSD78-3-K-YRC-VS-alt2-YAL.jpg",
      "parent_shared_folder_id": "1798xxxxx",
      "id": "id:OSjWkHwnxxxxxxxxxxx",
      "client_modified": "2022-06-16T15:46:52Z",
      "server_modified": "2023-08-16T18:40:49Z",
      "rev": "6030ea26b853d6b372fb3",
      "size": 158532,
      "sharing_info": {
        "read_only": false,
        "parent_shared_folder_id": "1798xxxxx",
        "modified_by": "dbid:AABa5y4GiPxxxxxxx"
      },
      "is_downloadable": true,
      "content_hash": "73021542c3f9b6e2adb7e7ac61f54d46ece0893a2f51766594b40f798efab548"
    }

However, when I try to get a file count on the root directory using the root_namespace_id:

curl -X POST https://api.dropboxapi.com/2/file_requests/count \
  --header 'Authorization: Bearer <mytoken>' \
  --header 'Content-Type: application/json' \
  --header 'Dropbox-Api-Path-Root: {".tag":"root", "root":"2617xxxxx"}' \
  --header 'Dropbox-Api-Select-User: dbmid:AACFxh5TjExxxxxxx' \
  --data 'null'</mytoken>

I get this: { "file_request_count": 0 }

If I use the home_namespace_id in the above call, I get this:

{ "error": { ".tag": "invalid_root", "invalid_root": { ".tag": "team", "home_namespace_id": "1787xxxxx", "home_path": "/Mariah Nagma", "root_namespace_id": "2617xxxxx" } }, "error_summary": "invalid_root/" }

All I'm trying to do, eventually, is to move/rename a file. But I can't even get a file count or a file list:

	
{
  "file_requests": [],
  "cursor": "AACkg6FBSbDUskOcnoVpSIWAibkbgr2HGN39aJS3N_ssPfHfHs0vZ3E8QqO0n3UuCyEo2I0qXc7S2lPER8gUSEocbDLqw4aw84Zl8Rsr8K3dMuaSgtsm2jDQs6amotL-N69UJdqLLUipIrDg-8Ibx7sO79J6VbrkGr0DGzCaemCm8_eDJrEIX5bfbn4_7xAY9tTSklglnhB8O37vNnm424ZT",
  "has_more": false
}

A move requests informs me that source file doesn't exist:

	
{
  "error_summary": "from_lookup/not_found/...",
  "error": {
    ".tag": "from_lookup",
    "from_lookup": {
      ".tag": "not_found"
    }
  }
}

What am I doing wrong?
Thanks,
Chris