Hi /r/powershell,

I have a simple script logic that narrows down to this:

Function Set-Object {
    $Object.Status = 'Altered'
}

$Object = [PsCustomObject] @{
    'Status' = $null
}

Set-Object

$Object

The result is:

Status 
------ 
Altered

Now I thought I can start the Set-Object as a background job using Start-Job and periodically check $Object for changes. I thought I can just do this with Start-Job -ScriptBlock {Set-Object} which results in:

Id     Name            PSJobTypeName   State         HasMoreData     Location             Command                  
--     ----            -------------   -----         -----------     --------             -------                  
1      Job1            BackgroundJob   Running       True            localhost            Set-Object  

But when I check $Object for changes, I can't see any. When I check the status of the job with Get-Job, it has failed:

Id     Name            PSJobTypeName   State         HasMoreData     Location             Command                  
--     ----            -------------   -----         -----------     --------             -------                  
1      Job1            BackgroundJob   Failed        False           localhost            Set-Object     

Why did the job fail?