Genesyscloud_user_settings screen_recording 422 on BYOC AU-1

Stuck on deploying screen recording via Terraform. Provider genesyscloud 2.5.1 on AU-1 BYOC. Plan succeeds. Apply fails with 422 Unprocessable Entity. API trace shows validation error on recording_enabled field. No other settings changed. Is this a known BYOC restriction or schema mismatch?

resource "genesyscloud_user_settings" "test" {
 user_id = var.user_id
 settings {
 screen_recording {
 recording_enabled = true
 }
 }
}