We're using Cesium 1.1 because CZML playback was not working in 1.3, and now it looks like 1.4 has a problem. Do you guys want the CZML file I'm using?
It plays for a good amount of time then fails. I'm using the demo here http://cesiumjs.org/Cesium/Build/Apps/CesiumViewer/index.html
An error occurred while rendering. Rendering has stopped.
TypeError: Cannot set property 'id' of undefined
TypeError: Cannot set property 'id' of undefined
at R.updateObject (http://cesiumjs.org/Cesium/Build/Apps/CesiumViewer/CesiumViewerStartup.js:397:24741)
at L.update (http://cesiumjs.org/Cesium/Build/Apps/CesiumViewer/CesiumViewerStartup.js:397:25863)
at g.update (http://cesiumjs.org/Cesium/Build/Apps/CesiumViewer/CesiumViewerStartup.js:400:11199)
at http://cesiumjs.org/Cesium/Build/Apps/CesiumViewer/CesiumViewerStartup.js:418:2241
at i.raiseEvent (http://cesiumjs.org/Cesium/Build/Apps/CesiumViewer/CesiumViewerStartup.js:379:4941)
at l.tick (http://cesiumjs.org/Cesium/Build/Apps/CesiumViewer/CesiumViewerStartup.js:382:641)
at M.render (http://cesiumjs.org/Cesium/Build/Apps/CesiumViewer/CesiumViewerStartup.js:416:5162)
at t (http://cesiumjs.org/Cesium/Build/Apps/CesiumViewer/CesiumViewerStartup.js:415:27788)