Enesys RS Data Extension 3.4.6 fixes a bug that caused, in some cases, the Reporting Services account credentials to be used instead of the credentials of the users running the report when using Windows Integrated Security credentials in the data source configuration.

Any version of Enesys RS Data Extension v3.3.32 (and upper) should be upgraded to this version if you are using (or plan to) Windows Integrated Security credentials for running reports (as opposed to credentials stored securely on the server).