09/30/2026: KI-158

A new known issue (KI) has been identified where, in orgs on Salesforce Winter '27 with Lightning Web Security (LWS) enabled, clicking Download on the Field Audit Trail related list throws a Lightning Web Security: HTMLAnchorElement href does not support data:, javascript: or vbscript: schemes. error instead of downloading the CSV file. The fix ships with Fall'26. For more information about the KI, including how to reproduce and work around the issue, reference KI-158.