No longer able to access Cesium Ion servers from outside of the US

I have been receiving reports from customers in Western Europe (Germany and France) that the application I have developed is no longer able to access the terrain servers, causing the program to fail. I have VPN’ed to Japan and Romania, and confirmed the terrain fails to load if the request comes from these regions, while it works fine from my real IP address in the US. I would expect to be hearing about this if others were experiencing this problem…

Can anyone shed light on this situation please?

Thomas Low
Cloudbase Game Labs
Developer of Freeflight Experience

Just to leave this not unanswered here: The issue was most likely related to KNOWN ISSUE: Tilesets not loading in packaged Unreal apps (specific details are being investigated internally).

Thank you Marco. I have advised my customers on the procedure outlined in the link, and am awaiting confirmation that their issue is resolved.