Analytics Software

Hi we have some users for discoverer reports .The report show data to Admin user. But if the same report is run through any other user id , it displays 'No data is available'. the report is shared to the user, Proper grants on the table is given and also the user is given access to Business Area. It has been an issue only from last week before that it was working fine . There was a data dump taken from the database last week , would that be an issue ? not sure what DBA has done ..The same report is able to run through the user logins in Discoverer desktop tool .The issue is only when accessed via Discsoverer viewer