Script Execution Context Missing on BYOC Trunks in AP-Southeast-1

Is it possible to trigger Agent Scripting via Architect on calls routed through ap-southeast-1 BYOC trunks? The script fails silently with no error code, whereas PSTN calls execute correctly. We are using Genesys Cloud 2024-10 and the latest Architect version. The SIP registration is stable, but the interaction context seems incomplete for carrier-sourced calls. Any insights on required configuration?