Business Insights Explorer 5.10.3.0 - Can't Filter Alpha-Numeric items codes

Some of the items codes we use in inventory start with a letter instead of a number.  In the data grid view of Business Insights Explorer, when I try to select a custom range of item codes or do a filter builder for item codes, none of the items that start with a letter are listed as sort range options.

Is this a known issue that is fixed in later releases?