Data exclusion not working during Classification

Discussion created by amurphy27 on Aug 29, 2013
Latest reply on May 31, 2019 by lisa.douangchai_cancer
I am trying to do a task ArcGIS 10.1 (SP1) that is normally easy but for some reason isn't working.
I want to classify my data but exclude certain values. I have always used the data exclusion option before (Layer Properties - Symbology - Quanities - Classify - Exclusion)  and it has worked perfectly. Now I don't get an error but my exclusion parameters just don't take and the histogram doesn't update to the new parameters.
I've tried now on multiple different shapefiles and none seem to work but they all work on the computer running ArcGIS 9.3.
Is this a known 10.1 bug?