diff --git a/Filters/Core/vtkContourFilter.cxx b/Filters/Core/vtkContourFilter.cxx
index ac956f92712263568ffed043eb094f1144fb0ca2..03eef1b3fa4b731de82312ca7b3bdcafccf33785 100644
--- a/Filters/Core/vtkContourFilter.cxx
+++ b/Filters/Core/vtkContourFilter.cxx
@@ -438,6 +438,7 @@ int vtkContourFilter::RequestData(
     {
       cgrid->SetValue(i, values[i]);
     }
+    cgrid->AddObserver(vtkCommand::ProgressEvent, this->InternalProgressCallbackCommand);
     cgrid->SetInputArrayToProcess(0, this->GetInputArrayInformation(0));
     cgrid->UpdatePiece(info->Get(vtkStreamingDemandDrivenPipeline::UPDATE_PIECE_NUMBER()),
       info->Get(vtkStreamingDemandDrivenPipeline::UPDATE_NUMBER_OF_PIECES()),
diff --git a/IO/Geometry/vtkOBJReader.cxx b/IO/Geometry/vtkOBJReader.cxx
index f4c49d12704e43c23ad809bca6e6c7bc2f9db103..91c995e8c8c88b0339a9e06fc39a29aacde1fa97 100644
--- a/IO/Geometry/vtkOBJReader.cxx
+++ b/IO/Geometry/vtkOBJReader.cxx
@@ -973,7 +973,7 @@ int vtkOBJReader::RequestData(vtkInformation* vtkNotUsed(request),
               }
             }
             // copy the normal for this point across (if there is one)
-            if (n_normal_pts > 0)
+            if (n_normal_pts > 0 && normals->GetNumberOfTuples() > 0)
             {
               new_normals->InsertNextTuple(normals->GetTuple(normal_pts[pointi]));
             }