The Db2 i database has RCAC (Row and Column Access Control) rules active for the specified table. The RCAC rules that are displayed might impact the number of rows that are returned and the values of the columns that are read and returned based on user-defined RCAC rules.
Verify the rules with your database security administrator and update them if needed. Alternatively, run the PowerExchange task for a user that is not impacted by the active rules that are in place for the table.