1 files changed, 1 insertions, 0 deletions

diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
index 66d85c4..1857757 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
@@ -5202,6 +5202,7 @@ namespace OpenSim.Region.Framework.Scenes
                     }
 
                     Quaternion rot = Quaternion.Slerp(RotationOffset,APIDTarget,1.0f/(float)m_APIDIterations);
+                    rot.Normalize();
                     UpdateRotation(rot);
 
                     m_APIDIterations--;