Genesyscloud_analytics_view 400 Bad Request - Invalid JSON via Terraform

Error: 400 Bad Request - Invalid JSON Payload

Terraform v1.9.8
Provider v1.65.2
Region: Australia/Sydney

Deploying custom analytics view via genesyscloud_analytics_view. The apply fails with 400. The HCL definition matches the OpenAPI spec for reporting:view:write. Manual API call with same payload succeeds. State shows resource created, but next plan shows drift. Is the provider serializing the metrics array incorrectly? Logs attached.