WORKAROUND:
Apply the fix by replacing the .jrxml files for the Workflow Approval report.
1. Unzip the fix under a suitable directory
2. Copy the files to <stat_home>/report/approvals/format
3. Delete any .jasper files in that folder.
The Stat Central Agent does not need to be restarted. This fix can be apply for any Stat 5.7.x.
STATUS:
Waiting for fix in a future release of Stat