Index: /issm/trunk-jpl/src/c/objects/Elements/Penta.cpp
===================================================================
--- /issm/trunk-jpl/src/c/objects/Elements/Penta.cpp	(revision 12749)
+++ /issm/trunk-jpl/src/c/objects/Elements/Penta.cpp	(revision 12750)
@@ -1278,4 +1278,5 @@
 		/*Recover vertices ids needed to initialize inputs*/
 		for(i=0;i<6;i++){ 
+			_assert_(iomodel->Data(MeshElementsEnum));
 			penta_vertex_ids[i]=(int)iomodel->Data(MeshElementsEnum)[6*index+i]; //ids for vertices are in the elements array from Matlab
 		}
Index: /issm/trunk-jpl/src/c/objects/Elements/Tria.cpp
===================================================================
--- /issm/trunk-jpl/src/c/objects/Elements/Tria.cpp	(revision 12749)
+++ /issm/trunk-jpl/src/c/objects/Elements/Tria.cpp	(revision 12750)
@@ -1749,4 +1749,5 @@
 		/*Recover vertices ids needed to initialize inputs*/
 		for(i=0;i<3;i++){ 
+			_assert_(iomodel->Data(MeshElementsEnum));
 			tria_vertex_ids[i]=reCast<int>(iomodel->Data(MeshElementsEnum)[3*index+i]); //ids for vertices are in the elements array from Matlab
 		}