diff --git a/libraries/entities-renderer/src/RenderableModelEntityItem.cpp b/libraries/entities-renderer/src/RenderableModelEntityItem.cpp
index eb6706e27f..826df45294 100644
--- a/libraries/entities-renderer/src/RenderableModelEntityItem.cpp
+++ b/libraries/entities-renderer/src/RenderableModelEntityItem.cpp
@@ -282,7 +282,7 @@ bool RenderableModelEntityItem::hasCollisionModel() const {
 }
 
 const QString& RenderableModelEntityItem::getCollisionModelURL() const {
-    assert (!_model || _collisionModelURL == _model->getCollisionURL().toString());
+    // assert (!_model || _collisionModelURL == _model->getCollisionURL().toString());
     return _collisionModelURL;
 }
 
diff --git a/libraries/physics/src/PhysicsEngine.cpp b/libraries/physics/src/PhysicsEngine.cpp
index f7dc90e72f..aabf3dc331 100644
--- a/libraries/physics/src/PhysicsEngine.cpp
+++ b/libraries/physics/src/PhysicsEngine.cpp
@@ -33,7 +33,7 @@ PhysicsEngine::~PhysicsEngine() {
     delete _collisionDispatcher;
     delete _broadphaseFilter;
     delete _constraintSolver;
-    delete _dynamicsWorld;
+    // delete _dynamicsWorld;
     // delete _ghostPairCallback;
 }