1. When using backup to tape on a source job containing .vrb files, the jobs may fail with the error: MediaPool not found (id: 00000000-0000-0000-0000-000000000000).
2. When enabling incremental mode in backup to tape, .vrb files will be transfered to tape.
This is a known issue with version 18.104.22.1687
This issue is resolved in Patch 1 for Veeam Backup and Replication 8.0. Please refer to the following KB article for the patch release notes and download link: http://www.veeam.com/kb1982