SharePoint Service Provisioning - the service stuck on starting

When I tried to run SharePoint service - Manage Metadata Web Service on the Central Admin ... I wait and still Staring (Stuck)...

So again I ran the command (From SharePoint PowerShell)

Get-SPServiceInstance -Server SERVERNAME| where-object  {$_.TypeName -eq "Managed Metadata Web Service"} | Start-SPServiceInstance -confirm:$false > $null

And I got the Error

Start-SPServiceInstance : An object of the type Microsoft.SharePoint.Administration.SPServiceInstanceJobDefinition named "job-service-instance-ba7339e3-fb42-49c4-ac66-ab08e84eae0f" already exists under the parent Microsoft.SharePoint.Administration.SPTimerService named "SPTimerV4".  Rename your object or delete the existing object. At line:1 char:111 + ... eb Service"} | Start-SPServiceInstance -confirm:$false > $null +                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~     + CategoryInfo          : InvalidData: (Microsoft.Share...ServiceInstance:    SPCmdletStartServiceInstance) [Start-SPServiceInstance], SPDuplicateObject   Exception     + FullyQualifiedErrorId : Microsoft.SharePoint.PowerShell.SPCmdletStartSer    viceInstance

I deleted the job

$jobToDelete = Get-SPTimerJob | ? { $_.name -eq "job-service-instance-ba7339e3-fb42-49c4-ac66-ab08e84eae0f" }

 $jobToDelete.Delete()

You tried to stop again

Stop-SPServiceInstance -Identity ba7339e3-fb42-49c4-ac66-ab08e84eae0f

But I also got the job stuck - Deleting it again 

$jobToDelete = Get-SPTimerJob | ? { $_.name -eq "job-service-instance-ba7339e3-fb42-49c4-ac66-ab08e84eae0f" }

$jobToDelete.Delete()

I stopped timerJob on the server 

Then I tried a different way

$service = Get-SPServiceInstance -Identity ba7339e3-fb42-49c4-ac66-ab08e84eae0f

$service.unprovision()

$service.update()
iisreset /noforce

I was waiting to see that he was really disabled

$service.provision()

$service.update()
iisreset /noforce

I turned on the TimerJob

And It works :)