Duplicate Webhooks being received

Description
On multiple occasions, we receive duplicate webhook events. We’ve confirmed that our servers are always responding with 200 status code so there is no reason that Zoom should think it needs to resend the event. We noticed a few other forum posts where users were receiving events twice in early February and were wondering if this may be related to that issue but would like a definitive answer if at all possible.
Here is an example of an event we received twice:

{
  "payload": {
    "account_id": "xT9ULXO-REDACTED",
    "object": {
      "uuid": "h1j7Q+WFRbq1FIBLOmChIA==",
      "participant": {
        "user_id": "16780288",
        "user_name": "REDACTED REDACTED",
        "id": "RJGD7UsoSOC89ZxKvl4FdA",
        "join_time": "2021-02-17T15:37:40Z",
        "email": "REDACTED@REDACTED.co"
      },
      "id": "7424915602",
      "type": 4,
      "topic": "My Personal Meeting Room",
      "host_id": "T2kN2kexQ_REDACTED",
      "duration": 0,
      "start_time": "2021-02-17T15:36:56Z",
      "timezone": "America/Denver"
    }
  },
  "event_ts": 1613576262880,
  "event": "meeting.participant_joined"
}
{
  "payload": {
    "account_id": "xT9ULXO-REDACTED",
    "object": {
      "uuid": "h1j7Q+WFRbq1FIBLOmChIA==",
      "participant": {
        "user_id": "16780288",
        "user_name": "REDACTED REDACTED",
        "id": "RJGD7UsoSOC89ZxKvl4FdA",
        "join_time": "2021-02-17T15:37:40Z",
        "email": "REDACTED@REDACTED.co"
      },
      "id": "7424915602",
      "type": 4,
      "topic": "My Personal Meeting Room",
      "host_id": "T2kN2kexQ_REDACTED",
      "duration": 0,
      "start_time": "2021-02-17T15:36:56Z",
      "timezone": "America/Denver"
    }
  },
  "event_ts": 1613576262880,
  "event": "meeting.participant_joined"
}

Error
N/A

Which App Type (OAuth / Chatbot / JWT / Webhook)?
OAuth with webhooks

Which Endpoint/s?
N/A

How To Reproduce (If applicable)
No specific pattern for when duplicate events are received

Screenshots (If applicable)
N/A

Additional context
This started in the past 5-6 weeks

Hey @tfc,

Thanks for reaching out about this, and happy to help.

Often times, this is a result of having specified the same endpoint to receive notifications for both your app’s development and production environments. Can you ensure that for the app under which you’re receiving these webhooks, you haven’t specified the same endpoint twice under the Feature > Event Subscriptions settings?

Let me know—thanks!
Will

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