New & converted webinar link does not redirect to old zoom meeting link

I converted a meeting to a webinar. All documentation and Zoom chatbot say the link changes but redirects - when it doesn't! I've sent an email inviting people with the zoom link, and now anyone who tries to access it is getting 404 as it converted the meeting to webinar and changed the link. What can be done so anyone clicking on the old link will be redirected to the new one?