Split-Pipeline parallel jobs script won't finish the last job - powershell

Question

So I've been using Split-Pipeline module for some time now, and what bothers me about it, rarely does it really finish. I always get stuck with the last job in the queue hanging and have to either stop the script or kill ISE:
VERBOSE: Split-Pipeline: Jobs = 1; Load = End; Queue = 0
example: 300 servers, running a scan for hotfixes on them using split-pipeline. I'm using pretty standard parameters:
$servers | Split-Pipeline -Verbose -Count 10 { process {#some code for scanning#}}
So 10 jobs each loaded with 30 servers, first lets say 250 servers are scanned really fast, then it slows down a little and when the last job remains only, it never finishes...
Anyone experienced something similar? I've tested the same on several machines and it's always the same so I don't think it's related to the machine running the script.
EDIT: heres the code
$servers = (Get-Clipboard).trim() #server1..100
$KB = (Get-Clipboard).trim() -split ', ' #KB4022714, KB4022717, KB4022718, KB4022722, KB4022727, KB4022883, KB4022884, KB4022887, KB4024402, KB4025339, KB4025342, KB4021903, KB4021923, KB4022008, KB4022010, KB4022013, KB3217845
$servers | Split-Pipeline -Verbose -Variable KB -Count 10 { process {
$hash = [ordered]#{}
try
{
$hash.Hostname = $_
$os = gwmi win32_operatingsystem -ComputerName $_ -ErrorAction Stop
$hash.OS = $os.Caption
$hash.Architecture = $os.OSArchitecture
$today = [Management.ManagementDateTimeConverter]::ToDateTime($os.LocalDateTime)
$hash.LastReboot = [Management.ManagementDateTimeConverter]::ToDateTime($os.LastBootUpTime)
$hash.DaysSinceReboot = ($today - $hash.LastReboot).Days
}
catch
{
$hash.OS = $Error[0]
$hash.Architecture = 'N/A'
$hash.LastReboot = 'N/A'
$hash.DaysSinceReboot = 'N/A'
}
try
{
$hash.PendingReboot = icm -cn $_ {
if (Get-ChildItem "HKLM:\Software\Microsoft\Windows\CurrentVersion\Component Based Servicing\RebootPending" -EA SilentlyContinue) { return $true }
if (Get-Item "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\RebootRequired" -EA SilentlyContinue) { return $true }
if (Get-ItemProperty "HKLM:\SYSTEM\CurrentControlSet\Control\Session Manager" -Name PendingFileRenameOperations -Ea SilentlyContinue) { return $true }
try
{
$util = [wmiclass]"\\.\root\ccm\clientsdk:CCM_ClientUtilities"
$status = $util.DetermineIfRebootPending()
if(($status -ne $null) -and $status.RebootPending)
{
return $true
}
}
catch{}
return $false
}
}
catch
{
$hash.PendingReboot = 'N/A'
}
try
{
$hotfix = Get-HotFix -ComputerName $_ -Id $KB -ErrorAction Stop
if ($hotfix)
{
$hash.Hotfix = $hotfix.HotFixID -join ','
}
else
{
$hash.Hotfix = "No Hotfix from the list applied"
}
}
catch
{
$hash.Hotfix = $Error[0]
}
$obj = New-Object -TypeName PSObject -Property $hash
$obj | Export-Csv c:\temp\hotfixes.csv -NoTypeInformation -Append -Force
}
}