A user who has Audit Trail permissions can no longer access Audit Trails or run Audit Trail reports. For example, in the Smartview window in Audit Trails, these messages occur (referencing the user's alias for the xxxxx and respective Audit database for the XXXXX):
GPS Error epAuditTrailView I_PB_Refresh_CHG: 10
SQL Error epAuditTrailView I_PB_Refresh_CHG: 916
The server principal 'xxxxx' is not able to access the database 'XXXXX' under the current security context.
ODBC Error epAuditTrailView I_PB_Refresh_CHG: 08004