Error Message ?xml version="1.0" encoding="utf-16"?

I am experiencing the same issue. 

I have imported the file into a new project, but it still won't preview. It does save however. 

Here is my error message: 
<?xml version="1.0" encoding="utf-16"?>
<ErrorReport xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <UserId>auth0|5adda529d95df46c04c5b020</UserId>
  <HardwareId>UA1AV-5NNR6-PCDJ3-9RP3T-VVU3F</HardwareId>
  <Message>Object reference not set to an instance of an object.</Message>
  <StackTrace>   at bwObjectState Articulate.Bridgewater.Player.Objects.StageObjects.bwStageObject.AddState(bwObjectState oState)
   at bwObjectData Articulate.Design.Shapes.VectorGraphic.CreateObjectData(bwStageObject stageObj, IPlayerService service, IShapeStateInfo stateInfo, bwSlide slide)
   at bwObjectData Articulate.Design.Shapes.VectorGraphic.CreateStageObjectData(IPlayerService service, bwStageObject stageObj, bwSlideBase slide)
   at bwStageObject Articulate.Design.Shapes.VectorGraphic.GetStageObject(IPlayerService service, bwSlideBase slide)
   at void Articulate.Player.PlayerContentPublisher.WriteShapes(IEnumerable&lt;IPlayerShape&gt; shapes, bwSlideBase slideobj)
   at void Articulate.Player.PlayerContentPublisher.WriteSlideLayers(IPlayerSlide slide, bwSlide slideobj)
   at bwSlide Articulate.Player.PlayerContentPublisher.CreateSlideObject(IPlayerSlide slide, bwISlideContainer sceneobj)</StackTrace>
</ErrorReport>