Watcher license does not allow action execution

Hello, my company is using a few environments with trial license and we are negotiating to sign a contract with you for a higher tier.
We have configured some watchers (6), 5 of them work ok, however one of them gives the following issue:

{
  "watch_id": "ace42d13-5795-475e-9061-483734329d29",
  "node": "-eRIdaS1TiOtw1--SkrzAA",
  "state": "throttled",
  "@timestamp": "2022-08-18T10:00:00.152Z",
  "user": "elastic",
  "status": {
    "state": {
      "active": true,
      "timestamp": "2022-08-04T12:50:04.004Z"
    },
    "last_checked": "2022-08-18T10:00:00.152Z",
    "last_met_condition": "2022-08-18T10:00:00.152Z",
    "actions": {
      "email_admin": {
        "ack": {
          "timestamp": "2022-08-05T10:00:00.338Z",
          "state": "ackable"
        },
        "last_execution": {
          "timestamp": "2022-08-17T10:00:00.253Z",
          "successful": true
        },
        "last_successful_execution": {
          "timestamp": "2022-08-17T10:00:00.253Z",
          "successful": true
        },
        "last_throttle": {
          "timestamp": "2022-08-18T10:00:00.152Z",
          "reason": "watcher license does not allow action execution"
        }
      }
    },
    "execution_state": "throttled",
    "version": -1
  },
  "trigger_event": {
    "type": "schedule",
    "triggered_time": "2022-08-18T10:00:00.152Z",
    "schedule": {
      "scheduled_time": "2022-08-18T10:00:00.000Z"
    }
  },
  "input": {
    "none": {}
  },
  "condition": {
    "always": {}
  },
  "metadata": {
    "name": "Negative Forensic Sentiment Report",
    "xpack": {
      "type": "json"
    }
  },
  "result": {
    "execution_time": "2022-08-18T10:00:00.152Z",
    "execution_duration": 1,
    "input": {
      "type": "none",
      "status": "success",
      "payload": {}
    },
    "condition": {
      "type": "always",
      "status": "success",
      "met": true
    },
    "actions": [
      {
        "id": "email_admin",
        "type": "email",
        "status": "throttled",
        "reason": "watcher license does not allow action execution"
      }
    ]
  },
  "messages": []
}

Can you please elaborate why the action cannot be executed, even though it worked 3 days ago?
Thank you in advance!

The email action is not available in the basic subscription.

I know this sounds naive but are you sure the license of that instance is not basic? You can check it quickly from the DevTools running GET _license.