Outlook add in cannot reset Bcc field

I am currently struggling with the situation that I cannot remove the bcc value, when trying to set it to an empty array, empty string or null this will throw an error.

return item['bcc'].setAsync([], (asyncResult) => {
  if (asyncResult.status !== Office.AsyncResultStatus.Succeeded) {
    return failure(Error(asyncResult.error.message))
  }

  return success()
})

I couldn't find a way in the documentation something like a removeAsync maybe? Is there another solution to remove the value from Bcc field?

Client: Outlook for Mac Version: 16.46 (21021202)

Error message when Bcc is set to empty array:

Unhandled Rejection (Error): An internal error has occurred.

Error message when Bcc is set to empty string or null:

Unhandled Rejection (Sys.ArgumentException): Sys.ArgumentException: Value does not fall within the expected range.

Parameter name: recipients

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