Error: VSS snapshot already running on the target computer

Hi all,

We recently started receving the following error for a hyper-v backup. 

V-79-10000-11233 - VSS Snapshot error. A Microsoft Volume Shadow Copy Service (VSS) snapshot is already running on the target computer. Only one snapshot can run at a time.  Try running the job later.

I know there are various reason that may cause this issue. I thought Id start with the easy things first. This morning I went in to restart the volume shadow copy service and I noticed in the services panel the service was shown as started but the controls show it was off as shown below.

I was able to restart the service without any problem. With that said, since the shadow copy service startup type is set to manual, is the service suppose to be off and only triggered when backup exec fires the backup job?