--- applications/utilities/mesh/conversion/ideasUnvToFoam/ideasUnvToFoam.C.orig	2026-08-19 09:53:54.801817862 +0200
+++ applications/utilities/mesh/conversion/ideasUnvToFoam/ideasUnvToFoam.C	2026-08-19 10:28:36.111579704 +0200
@@ -257,6 +257,7 @@
     IFstream& is,
     DynamicList<cellShape>& cellVerts,
     DynamicList<label>& cellMaterial,
+    DynamicList<label>& edgesIndices,
     DynamicList<label>& boundaryFaceIndices,
     DynamicList<face>& boundaryFaces,
     DynamicList<label>& cellCorrespondence,
@@ -310,11 +311,13 @@
             // Rod. Skip.
             is.getLine(line);
             is.getLine(line);
+            edgesIndices.append(celli);
         }
         else if (feID == 171)
         {
             // Rod. Skip.
             is.getLine(line);
+            edgesIndices.append(celli);
         }
         else if (feID == 41 || feID == 91)
         {
@@ -461,6 +464,7 @@
     cellVerts.shrink();
     cellMaterial.shrink();
     boundaryFaces.shrink();
+    edgesIndices.shrink();
     boundaryFaceIndices.shrink();
     cellCorrespondence.shrink();
 
@@ -480,7 +484,8 @@
 (
     IFstream& is,
     DynamicList<word>& patchNames,
-    DynamicList<labelList>& patchFaceIndices
+    DynamicList<labelList>& patchFaceIndices,
+    DynamicList<label>& edgesIndices
 )
 {
     Info<< "Starting reading patches at line " << is.lineNumber() << '.'
@@ -541,8 +546,20 @@
         // Store
         if (groupType == 8)
         {
-            patchNames.append(groupName);
-            patchFaceIndices.append(groupIndices);
+            // if first element is an edge, it is a group of edges
+            if (edgesIndices.found(groupIndices[0]))
+            {
+                // => skip it
+                Info<< "Group " << groupName
+                << " is a group of edges => Skipping it."
+                << endl;
+                continue;
+            }
+            else // group of faces => add it
+            {
+                patchNames.append(groupName);
+                patchFaceIndices.append(groupIndices);
+            }
         }
         else
         {
@@ -696,6 +713,9 @@
     DynamicList<label> cellMat;
     DynamicList<label> cellCorrespondence;
 
+    // Edges (to be skipped from groups reading)
+    DynamicList<label> edgesIndices;
+
     // Boundary faces
     DynamicList<label> boundaryFaceIndices;
     DynamicList<face> boundaryFaces;
@@ -744,6 +764,7 @@
                     inFile,
                     cellVerts,
                     cellMat,
+                    edgesIndices,
                     boundaryFaceIndices,
                     boundaryFaces,
                     cellCorrespondence,
@@ -757,7 +778,8 @@
                 (
                     inFile,
                     patchNames,
-                    patchFaceIndices
+                    patchFaceIndices,
+                    edgesIndices
                 );
             break;