Issue unsharing a folder using API

I have a issue related to shared folder unsharing. I gonna post the requests and corresponding results.

Running 2/sharing/list_mountable_folders:

curl -X POST https://api.dropboxapi.com/2/sharing/list_mountable_folders \
  --header 'Authorization: Bearer sl.BQ...' \
  --header 'Content-Type: application/json' \
  --data '{}'

... does return:

{
  "entries": [
    {
      "access_type": {
        ".tag": "owner"
      },
      "is_inside_team_folder": false,
      "is_team_folder": false,
      "path_lower": "/music",
      "name": "Music",
      "policy": {
        "acl_update_policy": {
          ".tag": "editors"
        },
        "shared_link_policy": {
          ".tag": "anyone"
        },
        "viewer_info_policy": {
          ".tag": "enabled"
        }
      },
      "preview_url": "https://www.dropbox.com/scl/fo/5vl.../h?dl=0",
      "shared_folder_id": "3104120081",
      "time_invited": "2022-09-29T17:34:02Z",
      "access_inheritance": {
        ".tag": "inherit"
      }
    },
    ...
  ]
}

 For readability, the important entry is listed only (some non important content is stripped, but id is the actual).

Next while I'm trying unshare the same folder using /2/sharing/unshare_folder:

curl -X POST https://api.dropboxapi.com/2/sharing/unshare_folder \
  --header 'Authorization: Bearer sl.BQ...' \
  --header 'Content-Type: application/json' \
  --data '{"shared_folder_id":"3104120081"}'

 The result is an async id:

{
  ".tag": "async_job_id",
  "async_job_id": "dbjid:AABWMExqheAMvyb_UB-tiU5GcyV0Z1AWnBzBuV6EMZEHaFDv9QFv5ru1mpNqFYC1KizxEvJ3lweB4WwZQ1kcwlQI"
}

And at the end the result on checking job status using /2/sharing/check_job_status:

curl -X POST https://api.dropboxapi.com/2/sharing/check_job_status \
  --header 'Authorization: Bearer sl.BQ...' \
  --header 'Content-Type: application/json' \
  --data '{"async_job_id":"dbjid:AABWMExqheAMvyb_UB-tiU5GcyV0Z1AWnBzBuV6EMZEHaFDv9QFv5ru1mpNqFYC1KizxEvJ3lweB4WwZQ1kcwlQI"}'

...results in:

{
  ".tag": "failed",
  "failed": {
    ".tag": "unshare_folder_error",
    "unshare_folder_error": {
      ".tag": "no_permission"
    }
  }
}

In addition to 'no_permission':

x-dropbox-request-id: 2188ae550fd2438198dbe457909a661a

Why this 'no_permission' gets up?