The invocation of Write on the 'Environment' provider's content writer failed for path 'env:Path'. Environment variable name or value is too long (4331708)

• When executing multiple migration jobs via PowerShell in loop, or when submitting remote migration jobs through PowerShell in loop, you may encounter the following error about Environment "Path" variable
  

• Copy-MLAllSharePointSiteContent : Cannot bind parameter 'CopyPermissionLevels' to the target. Exception setting "CopyPermissionLevels": "The invocation of Write on the 'Environment' provider's content writer failed for path 'env:Path'. Environment variable name or value is too long."

• Upgrade to Content Matrix 9.3 or higher.
• If running on an older version of Content Matrix (< 9.3), you may explicitly reset the "Path" variable back to it's original value, before calling the next migration job in PowerShell loop using these steps:

1) Open a new PowerShell window and type the following command to know the original path:

    $env:Path

2) Reset the "Path" variable inside your PowerShell migration script loop, before the next job gets triggered:

Example:

$env:Path ="C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\Microsoft SQL Server\Client SDK\ODBC\130\Tools\Binn\;C:\Program Files (x86)\Microsoft SQL Server\130\Tools\Binn\;C:\Program Files\Microsoft SQL Server\130\Tools\Binn\;C:\Program Files\Microsoft SQL Server\130\DTS\Binn\;C:\Program Files (x86)\Microsoft SQL Server\Client SDK\ODBC\130\Tools\Binn\;C:\Program Files (x86)\Microsoft SQL Server\130\DTS\Binn\;C:\Program Files (x86)\Microsoft SQL Server\130\Tools\Binn\ManagementStudio\;C:\Program Files (x86)\Metalogix\Content Matrix Consoles\SharePoint Edition;C:\Program Files (x86)\Metalogix\Content Matrix Consoles\SharePoint Edition\AMD64;C:\Program Files (x86)\Metalogix\Content Matrix Consoles\SharePoint Edition\x86"