PoSH-SSH Output To File Length Issues

[packetflow21]

I use the Posh-SSH module to authenticate to remote Cisco devices and run IOS commands that output to a local file. It works great when the remote command generates minimal output, example "show inventory | include NM".
The issue I'm having is when the remote command generates pages of output, example "show running-config". Specifically, the command output (to local file) starts writing at a point well after the beginning of the expected command output.
Here is my code snippet:

Install-Module -Name Posh-SSH -RequiredVersion 3.2.4
Import-Module Posh-SSH

$devices = Import-Csv C:\posh-ssh\devices.csv
$credentials = Get-Credential
$command1 = 'terminal length 0'
$command2 = 'show running-config'
$command3 = 'logout'

foreach ($device in $devices)
{
$deviceIP = $device.IP | Out-String
$deviceIP = $deviceIP -replace '\s','' -replace '\n','' -replace '\s+',''
Write-Host -ForegroundColor Green "Connecting to $deviceIP"
New-SSHSession -ComputerName $device.IP -Credential $credentials -AcceptKey
$sshConnection = New-SSHShellStream -Index 0
$sshConnection.writeLine("$command1")
Write-Host -ForegroundColor Green "Running command '$command1'"
Start-Sleep -Seconds 1
$sshConnection.writeLine("$command2")
Write-Host -ForegroundColor Green "Running command '$command2'"
Start-Sleep -Seconds 1
$sshConnection.writeLine("$command3")
Write-Host -ForegroundColor Green "Running command '$command3'"
Start-Sleep -Seconds 1
$sshConnection.read() | Out-File C:\posh-ssh\$deviceIP-running-config.txt
Write-Host -ForegroundColor Yellow "Disconnecting from $deviceIP"
Remove-SSHSession -Index 0
}
Exit

Any assistance would be greatly appreciated.
Thank you!

[darkoperator]

You should take a look at https://github.com/darkoperator/Posh-SSH/blob/master/Posh-SSH/Posh-SSH.psm1#L884 you can see it keeps reading util a regex matches the prompt and once it does it executes the next command