We are trying generate 3D tiles from a 3.5 GB archive that contains around 16 million buildings in KML/COLLADA format.
The archive successfully uploads into Cesium ion, but the processing fails shortly with “Invalid File” error.
Previously, I’ve tried uploading a subset of this archive and it was working without any problems. So I think that the structure of the archive is correct, it’s the size or the number of files that causes this error. Is there some internal limitation that doesn’t allow to process large datasets like this?