Attendees admitted without waiting room

@MNO 

Are you able to verify that the waiting room is properly enabled for your Webinar? See the steps below:

To enable or disable Waiting Room for your own use:

1. Sign in to the Zoom web portal.
2. In the navigation menu, click Settings.
3. Click the Meeting tab.
4. Under Security, click the Waiting Room toggle to enable or disable it.
5. If a verification dialog appears, click Enable or Disable to verify the change.
   Note: If the option is grayed out, it has been locked at either the group or account level. You need to contact your Zoom admin.
6. Click Edit Options to specify Waiting Room options.