I am having trouble getting the SaveToAVI method to output a series of tga files from an animation. I cobbled together a macro that works just fine when outputting avi and bmp file types but does not create any files when when using the tga output option. Strangely, the return value from SaveToAVI is true so solidworks thinks it has succeeded. Could someone tell me what I am doing wrong? Attached is a sample assembly.

Dim swApp As SldWorks.SldWorks
Dim swModel As SldWorks.ModelDoc2
Dim swModelDocExt As SldWorks.ModelDocExtension
Dim swMotionMgr As SwMotionStudy.MotionStudyManager
Dim swMotionStudy1 As SwMotionStudy.MotionStudy
Dim swSaveAVIData As SwMotionStudy.AVIParameter
Dim sConfigName As String
Dim swConfig As SldWorks.Configuration
Dim Scene As SldWorks.SWScene
Sub main()
    Set swApp = Application.SldWorks
    Set swModel = swApp.ActiveDoc
    Set swModelDocExt = swModel.Extension
    Set swMotionMgr = swModelDocExt.GetMotionStudyManager()
    Set swMotionStudy1 = swMotionMgr.GetMotionStudy("Motion Study 1")
    Set swConfig = swModel.GetActiveConfiguration
    Set Scene = swConfig.GetScene
  
    result = Scene.DeleteFloorAppearance()
    Scene.FloorReflections = False
    Scene.FloorShadows = False
    
    sConfigName = swModel.GetActiveConfiguration.Name
    Dim fn As String
    
    'fn = "C:\test\" & sConfigName & ".avi"  'this works
    'fn = "C:\test\" & sConfigName & ".bmp"  'this works
    fn = "C:\test\" & sConfigName & ".tga" 'this doesn't
  
    
    swMotionStudy1.PlayMode = swAnimationPlayMode_e.swAnimationPlayModeNormal
    swMotionStudy1.SetTime (0)
    swMotionStudy1.SetDuration (10)
    swMotionStudy1.Calculate
    
    Set swSaveAVIData = swMotionMgr.CreateAVIParameter()
    swSaveAVIData.PreserveRatio = False
    swSaveAVIData.ImageSize = swSaveAVIImageSize_e.swImage_Custom
    swSaveAVIData.ScreenWidth = 1000
    swSaveAVIData.ScreenHeight = 1000
    swSaveAVIData.FramePerSecond = 1
    swSaveAVIData.SaveEntireAnimation = True
     
    'swSaveAVIData.OutputType = swAnimationOutputType_e.swAnimationOutput_AVI 'this works
    'swSaveAVIData.OutputType = swAnimationOutputType_e.swAnimationOutput_Series_of_BMP 'this works
    swSaveAVIData.OutputType = swAnimationOutputType_e.swAnimationOutput_Series_of_TGA 'this doesn't
    
    swSaveAVIData.RendererType = swRendererType_e.swRendererType_Solidworks_Screen
    swMotionStudy1.Stop
  
    result = swMotionStudy1.SaveToAVI(fn, swSaveAVIData)
    Debug.Print (result)  ' result is true even though no files were created
End Sub