VBA Type Mismatch with Microsoft Office PowerPoint SmartArt node shape

I have a simple routine that loops through the nodes of a SmartArt object that starts like this:

Function LoopSmartArt(oShp as Shape)
  Dim oShpNode As Shape
  Dim oNode As SmartArtNode
  
  With oShp
    For Each oNode In .SmartArt.AllNodes
      For Each oShpNode In oNode.Shapes

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The last line generates a Type Mismatch error but when I change the first Dim statement to be non-explicit:

   Dim oShpNode

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And then examine the data type by inserting a breakpoint and using this in the immediate window:

?TypeName (oShpNode)

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It returns "Shape".

Why is this a mismatch?!!!

Everything works as expected (except IntelliSense) when the variable is not defined as shape but this is really bugging me.
LVL 14
Jamie GarrochPowerPoint Consultant & DeveloperAsked:
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Rgonzo1971Commented:
Hi,

pls try

Dim oShpNode As Office.Shape

instead of Dim oShpNode As Shape ' Powerpoint.Shape

Regards
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Jamie GarrochPowerPoint Consultant & DeveloperAuthor Commented:
So simple Rgonzo1971. Thank you. Yet why do Microsoft have two (potentially more) different object models for something as basic as a shape object?!
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