Program: 159857
Project: 159857
Buggy source:
private void drawArrowsForTargets(TransferData data,Point parentPoint){
  List<UUID> targets=data.card.getTargets();
  if (targets != null) {
    Point me=new Point(data.locationOnScreen);
    me.translate(-parentPoint.x,-parentPoint.y);
    for (    UUID uuid : targets) {
      PlayAreaPanel p=MageFrame.getGame(data.gameId).getPlayers().get(uuid);
      if (p != null) {
        Point target=p.getLocationOnScreen();
        target.translate(-parentPoint.x,-parentPoint.y);
        ArrowBuilder.getBuilder().addArrow(data.gameId,(int)me.getX() + 35,(int)me.getY(),(int)target.getX() + 40,(int)target.getY() - 40,Color.red,ArrowBuilder.Type.TARGET);
      }
 else {
        for (        PlayAreaPanel pa : MageFrame.getGame(data.gameId).getPlayers().values()) {
          MagePermanent permanent=pa.getBattlefieldPanel().getPermanents().get(uuid);
          if (permanent != null) {
            Point target=permanent.getLocationOnScreen();
            target.translate(-parentPoint.x,-parentPoint.y);
            ArrowBuilder.getBuilder().addArrow(data.gameId,(int)me.getX() + 35,(int)me.getY(),(int)target.getX() + 40,(int)target.getY() + 10,Color.red,ArrowBuilder.Type.TARGET);
          }
        }
      }
    }
  }
}

Fixed version (ground truth):
private void drawArrowsForTargets(TransferData data,Point parentPoint){
  List<UUID> targets=data.card.getTargets();
  if (targets != null) {
    Point me=new Point(data.locationOnScreen);
    me.translate(-parentPoint.x,-parentPoint.y);
    for (    UUID uuid : targets) {
      boolean found=false;
      PlayAreaPanel p=MageFrame.getGame(data.gameId).getPlayers().get(uuid);
      if (p != null) {
        found=true;
        Point target=p.getLocationOnScreen();
        target.translate(-parentPoint.x,-parentPoint.y);
        ArrowBuilder.getBuilder().addArrow(data.gameId,(int)me.getX() + 35,(int)me.getY(),(int)target.getX() + 40,(int)target.getY() - 40,Color.red,ArrowBuilder.Type.TARGET);
      }
 else {
        for (        PlayAreaPanel pa : MageFrame.getGame(data.gameId).getPlayers().values()) {
          MagePermanent permanent=pa.getBattlefieldPanel().getPermanents().get(uuid);
          if (permanent != null) {
            found=true;
            Point target=permanent.getLocationOnScreen();
            target.translate(-parentPoint.x,-parentPoint.y);
            ArrowBuilder.getBuilder().addArrow(data.gameId,(int)me.getX() + 35,(int)me.getY(),(int)target.getX() + 40,(int)target.getY() + 10,Color.red,ArrowBuilder.Type.TARGET);
          }
        }
      }
      if (!found) {
        for (        PlayAreaPanel panel : MageFrame.getGame(data.gameId).getPlayers().values()) {
          PlayerView view=panel.getPlayerPanel().getPlayer();
          if (view != null) {
            SimpleCardsView graveyard=view.getGraveyard();
            if (graveyard.containsKey(uuid)) {
              found=true;
              p=MageFrame.getGame(data.gameId).getPlayers().get(view.getPlayerId());
              if (p != null) {
                Point target=p.getLocationOnScreen();
                target.translate(-parentPoint.x,-parentPoint.y);
                int y_offset=p.isSmallMode() ? (PlayAreaPanel.PANEL_HEIGHT - PlayAreaPanel.PANEL_HEIGHT_SMALL) : 0;
                ArrowBuilder.getBuilder().addArrow(data.gameId,(int)me.getX() + 35,(int)me.getY(),(int)target.getX() + 15,(int)target.getY() + 145 - y_offset,Color.red,ArrowBuilder.Type.TARGET);
              }
              continue;
            }
          }
        }
      }
    }
  }
}