Zoom Webinar - customer registered or attended for a webinar is not added as a campaign member

[Zoom4567]

Hi
Our webinar setting is set up to create an campaign and Add registrants as Campaign Members and create a lead, but this is not working as expected and we cant find the issue. 

Campaign is created
Zoom webinar is created
zoom webinar registrants is created 

Do any of you have experience the same issue?