diff --git a/core/PhysiCell_cell.cpp b/core/PhysiCell_cell.cpp
index 2755d7d5d..e91086f8b 100644
--- a/core/PhysiCell_cell.cpp
+++ b/core/PhysiCell_cell.cpp
@@ -1069,7 +1069,7 @@ void Cell::add_potentials(Cell* other_agent)
 		state.neighbors.push_back(other_agent); // move here in 1.10.2 so non-adhesive cells also added. 
 	}
 	/////////////////////////////////////////////////////////////////
-	if( fabs(temp_r) < 1e-16 )
+	if( fabs(temp_r) < 1e-16 || is_movable == false )
 	{ return; }
 	temp_r /= distance;
 	// for( int i = 0 ; i < 3 ; i++ ) 
diff --git a/core/PhysiCell_cell_container.cpp b/core/PhysiCell_cell_container.cpp
index 0c5850b1d..a31302c1f 100644
--- a/core/PhysiCell_cell_container.cpp
+++ b/core/PhysiCell_cell_container.cpp
@@ -240,7 +240,7 @@ void Cell_Container::update_all_cells(double t, double phenotype_dt_ , double me
 		for( int i=0; i < (*all_cells).size(); i++ )
 		{
 			Cell* pC = (*all_cells)[i]; 
-			if( pC->functions.update_velocity && pC->is_out_of_domain == false && pC->is_movable )
+			if( pC->functions.update_velocity && pC->is_out_of_domain == false )
 			{ pC->functions.update_velocity( pC,pC->phenotype,time_since_last_mechanics ); }
 		}
 
diff --git a/tests/cases/output_mechano-sample/snapshot00000000.svg b/tests/cases/output_mechano-sample/snapshot00000000.svg
index fc7ee99ec..c4c8a7bb7 100644
--- a/tests/cases/output_mechano-sample/snapshot00000000.svg
+++ b/tests/cases/output_mechano-sample/snapshot00000000.svg
@@ -2225,7 +2225,7 @@
   </text>
   <text x="25" y="1045"
    font-family="Arial" font-size="18.75" fill="black" >
-   0 days, 0 hours, 0 minutes, and 0.0032 seconds
+   0 days, 0 hours, 0 minutes, and 0.0159 seconds
   </text>
   <rect x="0" y="70" width="1000" height="1000" stroke-width="2" stroke="rgb(0,0,0)" fill="none"/>
   <rect x="1025" y="70" width="25" height="975" stroke-width="2" stroke="black" fill="none"/>
diff --git a/tests/cases/output_mechano-sample/snapshot00000001.svg b/tests/cases/output_mechano-sample/snapshot00000001.svg
index b21170487..5d84c00a2 100644
--- a/tests/cases/output_mechano-sample/snapshot00000001.svg
+++ b/tests/cases/output_mechano-sample/snapshot00000001.svg
@@ -2225,7 +2225,7 @@
   </text>
   <text x="25" y="1045"
    font-family="Arial" font-size="18.75" fill="black" >
-   0 days, 0 hours, 0 minutes, and 0.6763 seconds
+   0 days, 0 hours, 0 minutes, and 1.4565 seconds
   </text>
   <rect x="0" y="70" width="1000" height="1000" stroke-width="2" stroke="rgb(0,0,0)" fill="none"/>
   <rect x="1025" y="70" width="25" height="975" stroke-width="2" stroke="black" fill="none"/>
diff --git a/tests/cases/output_mechano-sample/snapshot00000002.svg b/tests/cases/output_mechano-sample/snapshot00000002.svg
index e01fae8a6..f1c8d5ebf 100644
--- a/tests/cases/output_mechano-sample/snapshot00000002.svg
+++ b/tests/cases/output_mechano-sample/snapshot00000002.svg
@@ -2225,7 +2225,7 @@
   </text>
   <text x="25" y="1045"
    font-family="Arial" font-size="18.75" fill="black" >
-   0 days, 0 hours, 0 minutes, and 1.3726 seconds
+   0 days, 0 hours, 0 minutes, and 3.0496 seconds
   </text>
   <rect x="0" y="70" width="1000" height="1000" stroke-width="2" stroke="rgb(0,0,0)" fill="none"/>
   <rect x="1025" y="70" width="25" height="975" stroke-width="2" stroke="black" fill="none"/>