Why kork cant move if re-enable after dead

I am trying the way respawn an AIplayer without delete them out of memory then re-create.
My method is:

function Armor::onDeath(%this, %obj, %state)
{
....
  %obj.schedule($CorpseTimeoutValue, "respawn", %obj,"Unused");
....
}
 function Armor::respawn(%this, %obj, %state)
{
    %obj.setDamageLevel(0);
    %obj.setDamageState("Enable");

    %obj.setMoveDestination("100 100 100", false);
}

The result is Kork wake up but always stand still.
Appreciate for explaination.