Hello,
We have been working with a CZML file showing flight tracks using Cesium 1.1 (in our app) and 1.2 (in the demo early yesterday https://cesiumjs.org/Cesium/Build/Apps/CesiumViewer/index.html )
Using the current CesiumViewer demo (or Viewer in Sandcastle), our flight tracks will play for a period of time, then crap-out with the following exception:
I will be happy to send our CZML file upon request from CZML developer.
Thanks
-Tom
An error occurred while rendering. Rendering has stopped.
undefined
DeveloperError: index is required.
Error
at new DeveloperError (https://cesiumjs.org/Cesium/Source/Core/DeveloperError.js:43:19)
at PolylineCollection.get (https://cesiumjs.org/Cesium/Source/Scene/PolylineCollection.js:350:19)
at PolylineUpdater.updateObject (https://cesiumjs.org/Cesium/Source/DataSources/PathVisualizer.js:360:53)
at PathVisualizer.update (https://cesiumjs.org/Cesium/Source/DataSources/PathVisualizer.js:474:32)
at DataSourceDisplay.update (https://cesiumjs.org/Cesium/Source/DataSources/DataSourceDisplay.js:193:41)
at https://cesiumjs.org/Cesium/Source/Widgets/Viewer/Viewer.js:257:47
at Event.raiseEvent (https://cesiumjs.org/Cesium/Source/Core/Event.js:146:30)
at Clock.tick (https://cesiumjs.org/Cesium/Source/Core/Clock.js:203:21)
at CesiumWidget.render (https://cesiumjs.org/Cesium/Source/Widgets/CesiumWidget/CesiumWidget.js:603:39)
at render (https://cesiumjs.org/Cesium/Source/Widgets/CesiumWidget/CesiumWidget.js:70:32)