The only one Hyper-V virtual machine (VM) is restored even though multiple VMs are selected for restore if Hyper-V VMs are backed up with Granular Recovery Technology (GRT) option enabled. The restore job completes with 'Successful' status though not all VMs selected are restored.

Please create a restore job for each Hyper-V virtual machine to avoid this issue.

This issue is currently under investigation by Symantec Corporation. For more information please check the following article.
http://www.symantec.com/docs/TECH202255