Webinar registration gives error 401 after PayPal payment Our non-profit organization has been using Zoom for over 2 years, but this problem only arose in October 2023 when we published details of our offerings and posted Zoom registration links on our website. The problem is with PayPal integration. At that point, and continuing to this day, every attempt to register for any of our Zoom webinars seems to fail after PayPal payment has been made. We have set up many test webinars and the problem occurs for every one. What the customer sees is that, having paid for the webinar, they are re-directed back to Zoom, on a "Waiting for confirmation from PayPal" page, but the spinner never stops. It's as if Zoom never receives a response from PayPal. If the customer is sharp-eyed, they may see a small popup message that says HTTP error 401 has occurred, but that message is only visible for a second or two. In fact, the PayPal transaction has been successfully