Pitch/Yaw Problem

I'm having trouble turning the camera with the mouse. As you can see in the video, during the rotations performed by holding down the right mouse button, the camera briefly follows the mouse movement, but back to the previous direction. The strange thing is with the classical movements (WSAD), the camera behaves well.


Part of my default.bind.cs

function yaw(%val)
{
   %yawAdj = getMouseAdjustAmount(%val);
   if(ServerConnection.isControlObjectRotDampedCamera())
   {
      // Clamp and scale
      %yawAdj = mClamp(%yawAdj, -m2Pi()+0.01, m2Pi()-0.01);
      %yawAdj *= 0.5;
   }

   $mvYaw += %yawAdj;
}

function pitch(%val)
{
   %pitchAdj = getMouseAdjustAmount(%val);
   if(ServerConnection.isControlObjectRotDampedCamera())
   {
      // Clamp and scale
      %pitchAdj = mClamp(%pitchAdj, -m2Pi()+0.01, m2Pi()-0.01);
      %pitchAdj *= 0.5;
   }

   $mvPitch += %pitchAdj;
}