setReaction and softDelete for channel messages broken?

Hi. We are facing the same issue. We are making Graph calls from Power Automate flow, account is added to the team owners group. This was working fine in the past.

In Teams Admin Center it is allowed for the owners to delete sent messages.

---

URI: https://graph.microsoft.com/v1.0/teams/857d84ee-****-4621-****-fe990ae52d8d/channels/19:NCdSvobaBPL14T-UqnxAVJ1YlBPBRyzG1niwtqpXc241@thread.tacv2/messages/1748347594768/softDelete
Method: POST
Content-Type: application/json

OUTPUTS/BODY:

{

  "error": {

    "code": "Forbidden",

    "message": "AclCheckFailed",

    "innerError": {

      "code": "60005",

      "message": "AclCheckFailed-Delete Message: Initiator (8:orgid:0097ce50-77d9-4635-997f-e3edc935ab44) is not allowed to delete message",

      "date": "2025-05-27T12:12:32",

      "request-id": "b146908f-9390-4a3a-93c7-00b7089f0249",

      "client-request-id": "b146908f-9390-4a3a-93c7-00b7089f0249"

    }

  }

}

Also, the owner is not allowed to delete the messages from the UI (Teams and/or browser).

Do you have any idea what is causing the issue?