From one day to the next, the customer's email that opens the ticket in the ticket's file is no longer displayed. And you have also stopped sending it to the Webhook URL that connects to our server and where we follow up.
(['issue']['fields']['creator']['emailAddress'])
It is a huge problem, because we use the client's email to find more information about it in our system. If we do not have the email, we work blindly.
This happens in Jira and Jira Service Desk.