Bulk Export 429 on WhatsApp Metadata Enrichment

Can anyone explain why the bulk export job returns a 429 Too Many Requests error when requesting enriched metadata for WhatsApp interactions? The standard export works fine, but adding the legal_hold_status field triggers the rate limit immediately. We are using the Genesys Cloud API v2. The documentation suggests this should be supported, but the behavior is inconsistent. Genesys Docs