Behavior bug?

Hi

I'v test this Behavior on a single object and it works fine.
my problem arise when:
1. I copy object that have this Behavior
2. paste a new object ( on TGB editor )

so if i have object ( objA ) that have this Behavior
and i copy from objA then paste it ( objB )
some strange things happen to my objects.
objA will go to some unexpected direction and objB will
be in the correct path.

what im doing wrong here? or maybe its a bug?

thanks

if (!isObject(DynamicMotion))
{
%template = new BehaviorTemplate(DynamicMotion);
%template.friendlyName = "Dynamic Motion";
%template.behaviorType = "Movement";
%template.description = "Move on specific path";

%template.addBehaviorField(VecArray, "object vectors path x1 y1..xn yn(first vector shouldnt start at 0,0 value)", string, "56 -19 31 -13 9 4.5 -17 -8 -60 10");
%template.addBehaviorField(Speed,"movement speed",int,10 );
%template.addBehaviorField(ScaleFactor,"increase/decrease path size",float,1.0 );
// %template.addBehaviorField(offsetX,"offset x",float,0.0 );
// %template.addBehaviorField(offsetY,"offset y",float,0.0 );

}

function DynamicMotion::onBehaviorAdd( %this )
{

for ( %i = 0; %i < getWordCount(%this.VecArray); %i++ )
{
%word = getWord(%this.VecArray,%i);
%word *= %this.ScaleFactor;
%this.VecArray = setWord(%this.VecArray,%i,%word);
}


//prepare vector
%this.vecCount = getWordCount( %this.VecArray ) ;
%this.curIdx = 0;

%startX = getWord( %this.VecArray,0 );
%startY = getWord( %this.VecArray,1 );

//%this.owner.position = %startX+0.2 SPC %startY+0.2;
%this.evtMotion = %this.schedule(50,"moveOnPath");

}


function DynamicMotion::onBehaviorRemove(%this)
{
if( isEventPending( %this.evtMotion ) )
cancel( %this.evtMotion );
}

function DynamicMotion::moveOnPath( %this )
{

%nextVec = getWords( %this.VecArray,%this.curIdx,%this.curIdx+1 );
%this.curIdx+=2;
%this.owner.moveTo( %nextVec,%this.Speed,false,true,false, 0.01 );
}

function DynamicMotion::onPositionTarget(%this)
{
if( (%this.vecCount - %this.curIdx) >= 2 )
%this.evtMotion = %this.schedule(50,"moveOnPath");

}