Architect v2024.3.1 is routing inbound traffic through the Ohio BYOC pool, but the Screen Recording block keeps dropping the session before it even starts. The platform’s throwing a 400 Bad Request with error_code: screen_recording_session_invalid right when the SIP 200 OK lands. Agent desktop’s online and permissions look fine, yet the payload never hits the storage bucket. Traces show the INVITE completes but the recording handshake just ghosts.