strange behavior when selecting multiple values in GridView

LainRobertson 

Thanks for the response, sure, here is the link to complete code on github: https://github.com/fahidsh/hyper-v-exporter/blob/main/vm-exporter.ps1

But I think it has to run on a Computer where Hyper-V is installed and probably has a few VMs (can be dummy/empty ones), since it uses the Get-VM command to get the VMs configured.

the way I am building my array for the GridView is through Get-VM, in the code

# Get All Virtual Machines on the Hyper-V Host
$VirtualMachines = Get-VM

# Add 'All' to the start of array of VM Names
$VirtualMachinesNames = @("All") + $VirtualMachines.Name

# Display the list in Grid
$VMName = $VirtualMachinesNames | Out-GridView -Title "Select VM to export" -OutputMode Multiple

# Print the Selected VM Names
foreach($vm in $VMName){
  Write-Host $vm
}

# Print the number of elements selected
Write-Host $VMName.Count

I know if use a static list, it works fine, i.e.

# a static list/array
$VirtualMachines = @("VM1", "VM2", "VM3", "VM4")

# Add 'All' to the start of array of VM Names
$VirtualMachinesNames = @("All") + $VirtualMachines

# Display the list in Grid
$VMName = $VirtualMachinesNames | Out-GridView -Title "Select VM to export" -OutputMode Multiple

# Print the Selected VM Names
foreach($vm in $VMName){
  Write-Host $vm
}

# Print the number of elements selected
Write-Host $VMName.Count