WFM Digital Channel Capacity Ignored in Architect Flow

Could someone explain why our WFM publish isn’t updating digital channel capacity in Architect? The schedule publish succeeds, but the chat queue depth spikes during the 8 AM CST peak. We’re using a BYOC Edge in Chicago. The flow uses a Set Capacity node linked to the WFM group, yet it seems to cache Monday’s headcount. Here is the flow config:

flow:
 capacity_source: wfm_group
 group_id: "wfm-digital-chi"
 refresh_interval: 300

Is there a known latency issue with WFM-to-Architect sync for messaging channels?