I have a program that exports a SolidWorks drawing to a DXF. The drawing has a block in it and when it is exported the block location changes. Apparently this is a bug in SolidWorks. As a workaround you can explode the block before you export it and the location doesn't change. My problem is when I try to programmatically explode the block it doesn't work.

This is what the drawing looks like before I explode the block

This is what the drawing looks like after I explode the block

My code is below. Any ideas?

Dim swSketchMgr As SldWorks.SketchManager

Dim vBlockDefs As Object

Dim vBlockInst As Object

Dim swBlockDef As SldWorks.SketchBlockDefinition

Dim swBlockInstance As SldWorks.SketchBlockInstance

Dim x As Integer = 0

Dim y As Integer = 0

swSketchMgr = swModel.SketchManager

vBlockDefs = swSketchMgr.GetSketchBlockDefinitions

If Not vBlockDefs Is Nothing Then

     For x = 0 To UBound(vBlockDefs)

          swBlockDef = vBlockDefs(x)

          vBlockInst = swBlockDef.GetInstances

          For y = 0 To UBound(vBlockInst)

               swBlockInstance = vBlockInst(y)

               swSketchMgr.ExplodeSketchBlockInstance(swBlockInstance)

          Next

     Next

End If