Bulk Export 400 Error on Legal Hold Metadata

Quick question about the Recording Export API. Running a bulk job for a legal discovery request, but the system rejects the payload with a 400 Bad Request. The error points to invalid schema in the metadata filter.

Using SDK v24.2 and targeting the /api/v2/recordings/bulk-export endpoint. The filter includes standard timestamp ranges and agent IDs, yet the response claims the ‘legal_hold’ attribute is malformed. This worked fine last week.

Is there a new requirement for the chain of custody fields in the JSON body? Need to ensure audit trail integrity for the client.