diff --git a/plugins/LayerView/LayerView.py b/plugins/LayerView/LayerView.py
index 78867750e2..5055f6bd03 100644
--- a/plugins/LayerView/LayerView.py
+++ b/plugins/LayerView/LayerView.py
@@ -100,15 +100,16 @@ class LayerView(View):
                                     continue
                             except:
                                 continue
-
-                            self._current_layer_mesh.addVertices(layer_mesh.getVertices())
+                            if self._current_layer_mesh: #Threading thing; Switching between views can cause the current layer mesh to be deleted.
+                                self._current_layer_mesh.addVertices(layer_mesh.getVertices())
 
                             # Scale layer color by a brightness factor based on the current layer number
                             # This will result in a range of 0.5 - 1.0 to multiply colors by.
                             brightness = (2.0 - (i / self._solid_layers)) / 2.0
-                            self._current_layer_mesh.addColors(layer_mesh.getColors() * brightness)
-
-                    renderer.queueNode(node, mesh = self._current_layer_mesh, material = self._material)
+                            if self._current_layer_mesh:
+                                self._current_layer_mesh.addColors(layer_mesh.getColors() * brightness)
+                    if self._current_layer_mesh:
+                        renderer.queueNode(node, mesh = self._current_layer_mesh, material = self._material)
 
     def setLayer(self, value):
         if self._current_layer_num != value: