When displaying a page that has a Cesium map, I get a "GET http://mysite.com/js/cesium/Build/Cesium/Assets/IAU2006_XYS/IAU2006_XYS_15.json 404 (Not Found)" error. I get a similar error if I reference the unminimized Cesium build. This file, as well as the files named *_0.json through *_27.json" do exist on the server. I only get this error for the "*_15.json" file. The map works great.
Any ideas why this file won't load? Thanks.