Bug in "vtkUnstructuredGrid::DecomposeAPolyhedronCell" while reading decompose data

Hello Team,

I am trying to read decompose data using "vtkPOpenFOAMReader".

    vtkSmartPointer<vtkPOpenFOAMReader> reader = vtkSmartPointer<vtkPOpenFOAMReader>::New();
    reader->SetFileName("D:/DecomposeData/abc/abc.foam");
 reader->SetCaseType(0);
 reader->ReadZonesOn();
 reader->Update();

But I couldn't. I find a bug in "vtkUnstructuredGrid::DecomposeAPolyhedronCell". Here, we get cellStream as null pointer. Giving error as "Microsoft C++ exception: vtkFoamError at memory location 0x0000002B9FAFDC98."

vtkIdType pid = *cellStream++;

I am using VTK5.10.1. Is there something I missed ?

Thanking you in adv.