The task manager was for classic FDM, it has nothing to do with FDMEE.
Thanks. Now that I can rule this out, is there something I am missing? When I run the build script present in our Planning server via an FDMEE batch job, it does not fetch data from our sour DB to build dimensions (yet JDBC connection established successfully). But surprisingly, the script works wonder when kicked off manually.
Maybe related to the user account or permissions.