Agent Scripting Webhook Payload to ServiceNow 400 Error

Having some config trouble here when triggering a ServiceNow incident from a Genesys Cloud Agent Scripting completion event. The outbound webhook returns a 400 Bad Request because the script_execution_id field is null in the payload, despite the script running successfully in Architect. Checked the Agent Scripting API docs and the schema matches, but the data action mapping seems to drop the identifier on completion. Anyone see this behavior in recent updates?