diff --git a/core/PhysiCell_cell.cpp b/core/PhysiCell_cell.cpp
index 1f3e2646b..d67e8105f 100644
--- a/core/PhysiCell_cell.cpp
+++ b/core/PhysiCell_cell.cpp
@@ -1066,7 +1066,7 @@ 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/modules/PhysiCell_settings.cpp b/modules/PhysiCell_settings.cpp
index a588383d1..6af2da0ee 100644
--- a/modules/PhysiCell_settings.cpp
+++ b/modules/PhysiCell_settings.cpp
@@ -378,7 +378,7 @@ bool create_directory(const std::string &path)
 #else
 bool create_directory(const std::string &path)
 {
-#if defined(__MINGW32__) || defined(__MINGW64__)
+#if defined(_WIN32)
 	bool success = mkdir(path.c_str()) == 0;
 #else
 	bool success = mkdir(path.c_str(), 0755) == 0;