Quick question about... Bulk Export API returning 500 for digital channel metadata

Quick question about the Bulk Export API behavior when requesting digital channel transcripts with strict legal hold filters.

The job fails immediately with a 500 Internal Server Error on the /api/v2/bulk/recordings endpoint. This happens specifically when the metadata request includes chain of custody timestamps for webchat interactions.

The same request works for voice recordings. Is there a known limitation for digital channel metadata in the current API version?