@clarkembers it's an authentication issue. Yes, it's hitting the endpoint, but it's not working because the credentials used are either incorrect or insufficient. Does the Jira user account have the right permission to access projects and issues? If it's a new service account, for example, just double-check to make sure you gave it the right credentials.

You can also try looking for the Script Include: "Connector" within the "Atlassian Jira Integrations Common" scope. Commenting out the line containing option_attachments_changed might work.