diff --git a/applications/utilities/cfdemPostproc/cfdemPostproc.C b/applications/utilities/cfdemPostproc/cfdemPostproc.C
index 90faf24e..a832bacc 100644
--- a/applications/utilities/cfdemPostproc/cfdemPostproc.C
+++ b/applications/utilities/cfdemPostproc/cfdemPostproc.C
@@ -62,7 +62,7 @@ int main(int argc, char *argv[])
     Info<< "\nStarting time loop\n" << endl;
 
     int count=0;
-    int DEM_dump_Interval=1000;
+    int DEM_dump_Interval(particleCloud.couplingProperties().lookupOrDefault<int>("dumpInterval",1000));
     particleCloud.reAllocArrays();
 
     double **positions_;
@@ -109,6 +109,7 @@ int main(int argc, char *argv[])
 
         particleCloud.voidFractionM().setvoidFraction(NULL,voidfractions_,particleWeights_,particleVolumes_,particleV_);
 
+        // make sure coupling interval = 1, otherwise update of voidfractionPrev and UsPrev necessary
         voidfraction.ref() = particleCloud.voidFractionM().voidFractionInterp();
         voidfraction.correctBoundaryConditions();
 
@@ -121,6 +122,9 @@ int main(int argc, char *argv[])
             NULL
         );
 
+        Us = particleCloud.averagingM().UsInterp();
+        Us.correctBoundaryConditions();
+
         runTime.write();
 
         particleCloud.IOM().dumpDEMdata();
diff --git a/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/oneWayVTK/oneWayVTK.C b/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/oneWayVTK/oneWayVTK.C
index 4a2774df..af104f38 100644
--- a/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/oneWayVTK/oneWayVTK.C
+++ b/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/oneWayVTK/oneWayVTK.C
@@ -171,6 +171,12 @@ void oneWayVTK::getData
             string just_read;
             while (just_read.compare(name) != 0)  input >> just_read;  // read until we read "name"
             input >> just_read;                                        // skip text for dataType
+            // need to distinguish between file formats from dump custom/vtk and from LPP
+            if(just_read.compare("3") == 0)
+	    {
+	        input >> just_read;
+	        input >> just_read;
+	    }
             for (int index = 0; index<particleCloud_.numberOfParticles(); ++index)
             {
                 input >> field[index][0] >> field[index][1] >> field[index][2];