Leaving MissionArea

I am using TGEA 1.7.1 and have created code (based on Ken Finney's "Advanced 3D Game Programming All In One" book) to "warp" the player from one end of the MissionArea to the other when the player leaves the MissionArea. However, for some reason the function GameConnection::onLeaveMissionArea never gets called when I leave the MissionArea. Is this a deprecated function, or am I just using it incorrectly? Here is my code:

GameConnection::onLeaveMissionArea(%this)
{
// The control objects invoked this method when they
// move out of the mission area.
echo("Leaving mission area."); // THIS LINE NEVER RUNS WHEN LEAVING THE MISSION AREA
%missionAreaID = nameToID("MissionAreaObject");
%longitude = getWord(MissionAreaID.Area, 0);
%latitude = getWord(MissionAreaID.Area, 1);
%width = getWord(MissionAreaID.Area, 2);
%height = getWord(MissionAreaID.Area, 3);

%tf = %this.player.GetTransform();
%x = getWord(%tf, 0);
%y = getWord(%tf, 1);
%rotation = getWords(%tf, 3, 6);

if (%x < %longitude)
%x += %width;
else if (%x > (%longitude + %width))
%x -= %width;

if (%y < %latitude)
%y += %height;
else if (%y > (%latitude + %height))
%y -= %height;

%found = containerRayCast(%x SPC %y SPC "1000", %x SPC %y SPC "-1000",
$TypeMasks::TerrainObjectType, %this.player);
%foundID = %found.getID();
%newPosition = getWords(%foundID, 1, 3);
%this.player.SetTransform(%newPosition SPC %rotation);
}



I appreciate any assistance.