We've received reports of an incident from our Content Delivery Network partner, Fastly. They have an active incident affecting content purges, starting at May 21, 2020 - 07:39 UTC.
Customers that have updated flags during this window and are using SDKs that primarily poll (e.g. client-side SDKs, PHP SDK) may be receiving stale flag data. Our engineers are monitoring the situation as it unfolds.
Monitor the incident at Fastly CDN from their Statuspage: https://status.fastly.com/incidents/khzxy8ks14pd