POST /api/v2/analytics/conversations/export failing with 400 Bad Request due to missing media_uri in manifest for WebRTC softphone sessions. The S3 bucket receives audio files, but the metadata link is broken, making the export useless for our legal discovery chain of custody requirements. This happens specifically with the latest SDK version 2.4.1 on Chrome. How do we force the API to include the correct media reference for these specific channel types?