The modification of the extraction process in Siebel 5.1.0 to select the used applications in the package wizard has created several issues which prevent to have a full computation of the snapshot.
These issues will be fixed shortly in the service pack 5.1.1.
The offline extractions done with this 5.1.0 version will not work due to missing data.
A new extraction must be done following the process described in the documentation.
Please be aware that the extension Siebel 5.1.0 has been withdrawn from the Extension Downloader.