IBX 3.4 TIBUpdateSQL.SetParams error


I have Update View (trigers Insert, Update, Delete)
In appliaction Tibquery + TIBUpdateSQL
I had in UpdateSql all field from View (After detection of a mistake has
left only those which are updated)
When TIbquery.Post
I Received a mistake of memory (when field not update in View) in
        Value := Field.NewValue;
In debug   Field.NewValue - show access violation at address ....
After that there is a crash of application

    Best regards, Konstantin.