Second attempt to execute event handler...

I'm getting the following run time message in Design Studio:-

"Second attempt to execute event handler "On Result Set Changed" for datasource....."

All I have is a datasource (DS_1, connecting to a universe) with load in script set to "false" and an "On Result Set Changed" script as follows:-

if(DS_1.getDataAsStringExt("_Tv0XQIA8EeSrtOqdJ8NBdA", {"_lnWO8IA7EeSrtOqdJ8NBdA":"Current Month"}).substring(0,1)=="-")

  { TEXT_1.setText(DS_1.getDataAsStringExt("_Tv0XQIA8EeSrtOqdJ8NBdA", {"_lnWO8IA7EeSrtOqdJ8NBdA":"Current Month"}));

    TEXT_2.setText("some text");

    TEXT_3.setText("other text");

  }

else

  { TEXT_1.setText("+" +

    DS_1.getDataAsStringExt("_Tv0XQIA8EeSrtOqdJ8NBdA", {"_lnWO8IA7EeSrtOqdJ8NBdA":"Current Month"}));

    TEXT_2.setText("other text");

    TEXT_3.setText("some text");

  }

I have noticed in a previous post that this was a bug in version 1.2 which was due to be fixed in SP1 as per note 1953361. We are currently on 1.3, does anybody know if this is still an outstanding issue or is it something I'm doing wrong?

Regards, Barry Howe.