What is the reason the bulk export job for bot interactions is stripping out the user_identity_hash field? we are using the recording export api v2.5 and setting the include_metadata flag to true. normally this works fine for voice channels but for digital channels like webchat and sms the exported csv files are missing this critical piece of data needed for our legal discovery chain of custody. the job completes with status 200 ok but the resulting s3 bucket files show null values for any pii-related fields even when the source data in architect clearly has them. we tried adjusting the date range and also checked the data retention policies in the tenant settings but nothing seems to fix it. is this a known limitation with the ai/bot analytics module or do we need to request a specific permission scope for the export service account? this is blocking our quarterly audit trail verification. please advise.