For anyone still having problems, please download and run this built version of the Cesium for Unreal Samples project:
In fact, I’d appreciate it if anyone running into this problem could do this before attempting to fix it themselves (such as by installing a missing certificate, as described above).
You should see Cesium World Terrain + Bing Maps in the hills outside Denver. If you don’t, please send me the log file it generates, which will be found in:
CesiumForUnrealSamples/Saved/Logs/CesiumForUnrealSamples.log
If you this project works fine, but your own project does not, please tell me that. This project is built for Windows only, so if you’re seeing this problem on some other platform, please tell me that as well.
We appreciate everyone’s help and patience with all this. It’s not clear why our new certificate - which is created by AWS and should be considered valid by any reasonable criteria - is being rejected by a subset of systems. Since none of our own systems are currently exhibiting this behavior, we need your help to understand what is going wrong.