Stuck on unexpected payload truncation when triggering a ServiceNow incident via Data Action in Genesys Cloud Architect. The conversation:transcript:completed event fires, but the subsequent REST call to ServiceNow drops nested JSON objects exceeding 4KB. Critical context fields vanish, breaking our automated ticketing workflow. Verified the webhook endpoint accepts large payloads directly. Is there a hidden buffer limit in the Data Action node or the underlying GC webhook infrastructure?