Hi,
Free char : free char are selected part of query logic but those values are not displayed in the default value of the query. after performing the drill down- across it will available in query.
i am thinking you are loading only EA measurements means it took automatically EA unit.
have you putting any filter on 0UNIT object if yes remove form the filter panel.
if you remove 0UNIT form the free char it won't show report.
Thanks,
Phani.