diff --git a/src/Plugins/ComplexCore/src/ComplexCore/Filters/Algorithms/RemoveFlaggedTriangles.cpp b/src/Plugins/ComplexCore/src/ComplexCore/Filters/Algorithms/RemoveFlaggedTriangles.cpp
index 78e9459c68..d0d72b2db9 100644
--- a/src/Plugins/ComplexCore/src/ComplexCore/Filters/Algorithms/RemoveFlaggedTriangles.cpp
+++ b/src/Plugins/ComplexCore/src/ComplexCore/Filters/Algorithms/RemoveFlaggedTriangles.cpp
@@ -79,12 +79,12 @@ const std::atomic_bool& RemoveFlaggedTriangles::getCancel()
 Result<> RemoveFlaggedTriangles::operator()()
 {
   // Remove Triangles from reduced according to removeTrianglesIndex
-  auto& originalTriangle = m_DataStructure.getDataRefAs<TriangleGeom>(m_InputValues->TriangleGeometry);
+  const auto& originalTriangle = m_DataStructure.getDataRefAs<TriangleGeom>(m_InputValues->TriangleGeometry);
+  const auto& mask = m_DataStructure.getDataRefAs<BoolArray>(m_InputValues->MaskArrayPath);
   auto& reducedTriangle = m_DataStructure.getDataRefAs<TriangleGeom>(m_InputValues->ReducedTriangleGeometry);
-  auto& mask = m_DataStructure.getDataRefAs<BoolArray>(m_InputValues->MaskArrayPath);
 
   // Set up allocated masks
-  auto size = originalTriangle.getNumberOfFaces();
+  usize size = originalTriangle.getNumberOfFaces();
   std::vector<usize> newTrianglesIndexList;
   newTrianglesIndexList.reserve(size);
 
@@ -150,8 +150,7 @@ Result<> RemoveFlaggedTriangles::operator()()
   }
 
   // Set up preprocessing conditions (allocation for parallelization)
-  size = newTrianglesIndexList.size();
-  reducedTriangle.resizeFaceList(size); // resize accordingly
+  reducedTriangle.resizeFaceList(newTrianglesIndexList.size()); // resize accordingly
 
   // parse triangles and reassign indexes to match new vertex list
   ParallelDataAlgorithm dataAlg;
diff --git a/src/complex/Utilities/DataArrayUtilities.cpp b/src/complex/Utilities/DataArrayUtilities.cpp
index 86f954d758..a3f13b8e44 100644
--- a/src/complex/Utilities/DataArrayUtilities.cpp
+++ b/src/complex/Utilities/DataArrayUtilities.cpp
@@ -239,7 +239,7 @@ Result<> ValidateNumFeaturesInArray(const DataStructure& dataStructure, const Da
   {
     results =
         MergeResults(results, MakeErrorResult(-5552, fmt::format("The number of Features ({}) in the Feature Data array at path '{}' does not match the largest Feature Id in the FeatureIds array {}",
-                                                                 numFeatures, arrayPath.toString(), largestFeature)));
+                                                                 numFeatures - 1, arrayPath.toString(), largestFeature)));
 
     const auto* parentAM = dataStructure.getDataAs<AttributeMatrix>(arrayPath.getParent());
     if(parentAM != nullptr)