Tried to fix clearing children but failed miserably

Renderer.cpp

@@ -216,7 +216,7 @@ void renderShape(const Enum::Shape::Value& shape, const Vector3& size, const Col
 			glPopMatrix();
 			/*Plusses, can possibly integrate into cylinder code later on*/
 			glVertexPointer(2, GL_FLOAT,0, square_arr);
-			glColor(Color3(127,127,127));
+			glColor3f(127,127,127);
 			glPushMatrix();
 			glRotatef(90,0,1,0);
 			glTranslatef(0,0,-(size.z+0.001F));

src/include/DataModelV2/WorkspaceInstance.h

@@ -8,5 +8,6 @@ class WorkspaceInstance :
 public:
 	WorkspaceInstance(void);
 	~WorkspaceInstance(void);
+	void clearChildren();
 	std::vector<PartInstance *> partObjects;
 };

src/source/DataModelV2/DataModelInstance.cpp

@@ -6,6 +6,8 @@
 #include <sstream>
 #include <commdlg.h>
 #include "ErrorFunctions.h"
+#include "Globals.h"
+#include "Application.h"
 
 using namespace std;
 using namespace rapidxml;
@@ -60,6 +62,7 @@ void DataModelInstance::modXMLLevel(float modY)
 void DataModelInstance::clearLevel()
 {
 	workspace->clearChildren();
+	g_usableApp->_propWindow->UpdateSelected(this);
 }
 PartInstance* DataModelInstance::makePart()
 {

src/source/DataModelV2/Instance.cpp

@@ -140,6 +140,10 @@ void Instance::addChild(Instance* newChild)
 
 void Instance::clearChildren()
 {
+	for (size_t i = 0; i < children.size(); i++)
+	{
+		delete children.at(i);
+	} 
 	children.clear();
 }
 void Instance::removeChild(Instance* oldChild)

src/source/DataModelV2/PartInstance.cpp

@@ -245,19 +245,11 @@ bool PartInstance::collides(Box box)
 void PartInstance::render(RenderDevice* rd) {
  	if (changed)
 	{
-
+		changed=false;
-		
 		Vector3 renderSize = size/2;
-		
+		glNewList(glList, GL_COMPILE);
-		glNewList(glList, GL_COMPILE_AND_EXECUTE);
-		glColor(this->color);
 		renderShape(this->shape, renderSize, color);
 		glEndList();
-		changed = false;
-		return;
-
- 		changed=false;
-		
 	}
 	rd->setObjectToWorldMatrix(cFrame);
 	glCallList(glList);

src/source/DataModelV2/WorkspaceInstance.cpp

@@ -9,6 +9,12 @@ WorkspaceInstance::WorkspaceInstance(void)
 	canDelete = false;
 }
 
+void WorkspaceInstance::clearChildren()
+{
+	children.clear();
+	Instance::clearChildren();
+}
+
 WorkspaceInstance::~WorkspaceInstance(void)
 {
 }