Outbound Campaign Recording Export Missing Digital Channel Metadata

Dealing with a very strange bug here with outbound campaign recording exports. When pulling recordings for legal discovery from campaigns using WhatsApp preview dialing, the JSON metadata lacks the interaction_id for roughly 20% of entries. The export job completes with 200 OK, but the chain of custody is broken without these identifiers.

Is this a known limitation of the Analytics Bulk Export API v2 when mixing voice and digital channels? Using EU region with Python 3.9 SDK.