Terraform plan drift on genesyscloud_routing_queue despite matching config

Running terraform plan on genesyscloud_routing_queue keeps showing drift on the outbound_email_addresses field. The config hasn’t changed, and the API returns the exact same list.

~ outbound_email_addresses = [
 - "support@test.com",
 ]

Docs say this field is derived from the user’s email. Is this a known state lock issue or just the provider being weird with derived values? Tried terraform state rm but it just recreates it with the same diff.