Hi 9283476,
I have test your option with the data environment, but the problem is the same. I can´t use the .filter property of the child recordset. When you create a hierarchical recordset using SHAPE, one of the fields of the parent recordset is a recordset itself, so you cann´t access its value, and so you can not use it´s .filter property to filter it.
Thanks in any case,
Aitor.