Script Stuck at "Waiting for pipeline output..."

PowerShell Universal
1 
Product: PowerShell Universal
Version: 3.9.17

Hello,
I have a problem with scripts executing external process,
When I executing the script it being stuck at “Waiting for pipeline output…” (even when I choose discard pipline at script options)

**In General: how should I execute external command line programs and get their output in PowerShell universal? **

function CopyToLinux {

$LinuxIP = "172.16.12.86"
$Program_PSCP = "D:\Externals\pscp.exe"
$WinPath = '\\fileserver\CSVFile.csv'
$LinuxPath = '/opt/app/etc/apps/search/lookups/'
$Args = "-P 22 -pw $Secret:Linux_Creds.Password `"$($WinPath)`" $($Secret:Linux_Creds.Username)@$($LinuxIP):`"$($LinuxPath)`""
$LinuxFileInfo = Get-ChildItem -File $WinPath
$lastupdatetime=$LinuxFileInfo.LastWriteTime
$nowtime = get-date
if (($nowtime - $lastupdatetime).totalhours -le 24) {
    Invoke-Process -FilePath $Program_PSCP -ArgumentList $Args
    }
}

CopyToLinux

at first I try to use Invoke-Expression but with same results, next I try to use Invoke-Proccess downloaded from psGallery But same results.

The Invoke-Process Function:

function Invoke-Process {
    [CmdletBinding(SupportsShouldProcess)]
    param
    (
        [Parameter(Mandatory)]
        [ValidateNotNullOrEmpty()]
        [string]$FilePath,

        [Parameter()]
        [ValidateNotNullOrEmpty()]
        [string]$ArgumentList
    )

    $ErrorActionPreference = 'Stop'

    try {
        $stdOutTempFile = "$env:TEMP\$((New-Guid).Guid)"
        $stdErrTempFile = "$env:TEMP\$((New-Guid).Guid)"

        $startProcessParams = @{
            FilePath               = $FilePath
            ArgumentList           = $ArgumentList
            RedirectStandardError  = $stdErrTempFile
            RedirectStandardOutput = $stdOutTempFile
            Wait                   = $true;
            PassThru               = $true;
            NoNewWindow            = $true;
        }
        if ($PSCmdlet.ShouldProcess("Process [$($FilePath)]", "Run with args: [$($ArgumentList)]")) {
            $cmd = Start-Process @startProcessParams
            $cmdOutput = Get-Content -Path $stdOutTempFile -Raw
            $cmdError = Get-Content -Path $stdErrTempFile -Raw
            if ($cmd.ExitCode -ne 0) {
                if ($cmdError) {
                    throw $cmdError.Trim()
                }
                if ($cmdOutput) {
                    throw $cmdOutput.Trim()
                }
            } else {
                if ([string]::IsNullOrEmpty($cmdOutput) -eq $false) {
                    Write-Output -InputObject $cmdOutput
                }
            }
        }
    } catch {
        $PSCmdlet.ThrowTerminatingError($_)
    } finally {
        Remove-Item -Path $stdOutTempFile, $stdErrTempFile -Force -ErrorAction Ignore
    }
}