Quick question about WFM Schedule Data in Architect IVR

Quick question about integrating weekly WFM schedule data into our Architect IVR flow for America/Chicago. We want to route based on real-time shift adherence status.

Using the WFM Lookup block, we get a 400 Bad Request when querying agent availability during peak swap hours. The API docs are vague on conflict handling.

Has anyone successfully mapped dynamic WFM status to IVR routing without causing latency spikes?