diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
index dd5e986b19..cf2161abfb 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
@@ -2811,11 +2811,11 @@ namespace OpenSim.Region.Framework.Scenes
                     }
                 }
 
-                RootPart.UpdatePrimFlags(UsePhysics, IsTemporary, IsPhantom, SetVolumeDetect);
+                RootPart.UpdatePrimFlags(UsePhysics, SetTemporary, SetPhantom, SetVolumeDetect);
                 for (int i = 0; i < parts.Length; i++)
                 {
                     if (parts[i] != RootPart)
-                        parts[i].UpdatePrimFlags(UsePhysics, IsTemporary, IsPhantom, SetVolumeDetect);
+                        parts[i].UpdatePrimFlags(UsePhysics, SetTemporary, SetPhantom, SetVolumeDetect);
                 }
             }
         }
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
index 3bce3c0504..0e4851562c 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
@@ -4307,6 +4307,9 @@ namespace OpenSim.Region.Framework.Scenes
             bool wasPhantom = ((Flags & PrimFlags.Phantom) != 0);
             bool wasVD = VolumeDetectActive;
 
+//            m_log.DebugFormat("[SOP]: Old states: phys: {0} temp: {1} phan: {2} vd: {3}", wasUsingPhysics, wasTemporary, wasPhantom, wasVD);
+//            m_log.DebugFormat("[SOP]: New states: phys: {0} temp: {1} phan: {2} vd: {3}", UsePhysics, SetTemporary, SetPhantom, SetVD);
+
             if ((UsePhysics == wasUsingPhysics) && (wasTemporary == SetTemporary) && (wasPhantom == SetPhantom) && (SetVD == wasVD))
                 return;
 
@@ -4336,6 +4339,11 @@ namespace OpenSim.Region.Framework.Scenes
                     SetPhantom = false;
                 }
             }
+            else if (wasVD)
+            {
+                // Correspondingly, if VD is turned off, also turn off phantom
+                SetPhantom = false;
+            }
 
             if (UsePhysics && IsJoint())
             {