[Unity 4.6.2] Bug of Handles.Lable with orthographic Camera

Handles.Label makes the Camera draws the Handles by perspective mode, and the other Handles.* call

// correct, draw a line from (0,0,10) to (10, 0, 10)

Code (csharp):

1.  
2. Handles.DrawCamera(new Rect(0.0f, 0.0f, 960.0f, 640.0f), myCamera, DrawCameraMode.LightmapResolution);
3. Handles.color = new Color(0.0f, 1.0f, 1.0f, 0.6f);
4. Handles.DrawLine(new Vector3(0, 0, 10f), new Vector3(10f, 0, 10f));
5.  

// incorrect

Code (csharp):

1.  
2. Handles.DrawCamera(new Rect(0.0f, 0.0f, 960.0f, 640.0f), myCamera, DrawCameraMode.LightmapResolution);
3. Handles.color = new Color(0.0f, 1.0f, 1.0f, 0.6f);
4. Handles.Label(new Vector3(0, 0, 10f), "10"); // the only different
5. Handles.DrawLine(new Vector3(0, 0, 10f), new Vector3(10f, 0, 10f)); // even this line is broken
6.  

 

does anyone have the same issue?