I'm getting the following error when I click on a MapView. I'm using jsapi 4.4
MapView.js:699 Uncaught TypeError: Cannot read property 'position' of undefined at Object.b.hitTest (https://js.arcgis.com/4.4/esri/views/MapView.js:699:292) at Object.c.hitTest (https://js.arcgis.com/4.4/esri/views/MapView.js:694:137) at https://js.arcgis.com/4.4/esri/views/MapView.js:735:50 at Array.map (native) at Object.c.hitTest (https://js.arcgis.com/4.4/esri/views/MapView.js:735:12) at Object._clickHandler (https://js.arcgis.com/4.4/init.js:2063:27) at https://js.arcgis.com/4.4/init.js:49:303 at a._callback (https://js.arcgis.com/4.4/esri/views/MapView.js:625:178) at c._handleEvent (https://js.arcgis.com/4.4/esri/views/MapView.js:560:71) at Object.eventCallback (https://js.arcgis.com/4.4/esri/views/MapView.js:556:401)
Just FYI for the next weary googler. Currently in 4.4, hitTest will fail with this error if any of your layers fail to properly load. In my case, a hosted feature service had an issue with a data store, and was in a state where it could not be queried with a where clause. Because the hitTest method checks all layers, there is a hitTest method in the features view class which does not check for a null pointer, and therefore throws an uncaught error crashing the entire application.
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