WFM Forecasting Data Missing in Performance Dashboard EU-West BYOC

Just noticed that the WFM forecasting metrics are completely absent from the Performance Dashboard in our EU-West BYOC environment, despite the following configuration being active:

wfm:
 forecasting:
 enabled: true
 granularity: hourly
 retention_days: 90

The queue activity views load correctly, but the forecasted volume lines are blank. Is there a known sync delay or a specific permission set required to expose this data in the dashboard views?