Powershell remote execution not writing log on remote machine - powershell

Question

I am currently stuck with an installation issue using a powershell script. I can run the script without any problem on Host B from command line. But when I attempt to launch it remotely, the script is not able to create the log file (which I monitor to see when I need to send the password to the command line). The error is at very bottom...
I launch the installer from Host A (see commands below). It remotely executes the powershell script cognosInstall.ps1 on Host B. The script code is at bottom. It begins to copy files over and kick-off the installation, but for some reason it has a problem with creating the log file. I check local directory on HostB and do not find the file either.
Host A (data collector): Triggers remote execution of powershell script which installs IBM Cognos.
$s=new-pssession -computername HostB -credential $creds
invoke-command -session $s {$filename=Split-Path c:\temp\auto-install\*stats*.iso -leaf -resolve;echo $filename;}
invoke-command -session $s {c:\temp\auto-install\cognosInstall.ps1 $filename;}
Host B (Cognos is being installed on):
#Open a command window
invoke-item C:\Windows\System32\cmd.exe
start-sleep -s 2
# Write output of install command to file
select-window cmd |send-keys "c:\temp\cognos-install\cognos_install.bat c:\temp\cognos-install\cognos_mssql.ini C:\temp\IBM_Cognos_10.1.1_and_FP1 > c:\temp\Cognos_Install_log 2>&1 {ENTER}"
#check file for password prompt
do {
Start-Sleep -s 8;
write-output "Waiting for Password Prompt"
}
until (Select-string -Path c:\temp\Cognos_Install_Log -pattern Password )
select-window cmd |send-keys "Passwd123{ENTER}"
Error I am getting:
Install starts to run..... then hits this issue.....
Copying install config file to cognos-install directory
C:\temp\auto-install\cognos_mssql.ini
1 File(s) copied
Beginning of Cognos Install - wait for completion
Waiting for Password Prompt
Cannot find path 'C:\temp\Cognos_Install_Log' because it does not exist.
+ CategoryInfo : ObjectNotFound: (C:\temp\Cognos_Install_Log:Stri
ng) [Select-String], ItemNotFoundException
+ FullyQualifiedErrorId : PathNotFound,Microsoft.PowerShell.Commands.Selec
tStringCommand