Hi Daniel,
As per your suggestions I did:
Edited the C:\program Files\OmniBack\Config\Server\global file and make an entry "
DbForceImportIfPositionExist=1". Restarted the DP services.
Tried to import again the media but still same error "Import failed with possible cause: this media already has valid copy in DB".
Any other suggestion how to fixed it. Also if i try to import my daily incremental backup tape it will import it without an issue, now when I go to import my full backup which is on 3 tape the import will always work fine for 1st tape only issue is on 2nd and 3rd tapes.
I believe it is a bug. Case open with HP software support from past 2 days till now no solutions .
Regards,
Syed