I am not seeing anything wrong
you can write two seperate formula to test each part against the detail section to see where the evaluation is not acting like you expected
test1
CDate({vwGenPatChangeInfo.DateTime_Changed}) <> Date (2014, 6, 27)
test2
{vwGenPatChangeInfo.Operator_Abbr} <> "237178"
place both on the detail section and you will see True and False values
(remove your suppression condition for now to get a full picture)
look at the rows where it is returning a value you did not expect and look for a pattern
you an also change it to
NOT (CDate({vwGenPatChangeInfo.DateTime_Changed}) = Date (2014, 6, 27) and {vwGenPatChangeInfo.Operator_Abbr} = "237178")
but it likely will have the same core issue as your version
Edited by DBlank - 10 Jul 2014 at 8:32am