WCO is currently experiencing issues. This appears to be impacting both snippet delivery as well as the ability to update snippets from the UI. A case has been opened with AWS to assist in restoring this service as quickly as possible.
Update: 11th Aug, 3:36pm MDT
Snippets should be returning now. Engineering is still are working separately through some UI/Edit issues with WCO which they are making progress on as well. You may still seem timeouts but we expect that to be cleaned up shortly.
Update 11th Aug, 5:37pm MDT
Remaining issues are related to DNS propagation issues. We expect it may take longer than expected to fully propagate and restore WCO to normal functionality. Most issues appear to be impacting the UI and not with rendering snippets at this time.
Update 12th Aug, 3:35am MDT
Services are operational again, though there may be still be some DNS locations that are slow to propagate.