Terraform provider 1.18.0 fails on nice_cxone_architect_flow with 400 during IVR skill group binding

The 03:45 JST deployment pipeline stalled again. State backup doesn’t show drift, but the run won’t proceed past apply. Terraform 1.9.6 paired with nice-cxone 1.18.0 throws a 400 Bad Request when the nice_cxone_architect_flow resource pushes the updated IVR routing logic. Console is empty. API rejects the skill_group reference outright. Tried purging cache and re-running with -refresh-only. Same result. Payload looks standard.

{
 "type": "invalid_request_error",
 "message": "Skill group ID 'sg_8f2a9c' does not match expected routing context for flow 'ivr_main_v2'",
 "code": 400
}

Checking the provider schema next.