Get-SPWeb class method not available in during script but works in Enter-PSSession???

So my code generates output when using Enter-PSSession but the same code does not return data using invoke-command (using CredSSP) as a script.

Here is the relevant excerpt from my script:

So I am able to use the Get-SPWeb.Recylce() method when I am using Enter-PSSession but as soon as I turn this code into a script with invoke-command I do not get access to that method.  What gives?  I am still logged in as the same user.  I suppose it would be a permissions issue but my login never changed

if ((Get-PSSnapin Microsoft.SharePoint.PowerShell -ErrorAction SilentlyContinue) -eq $null) {
      Add-PSSnapin Microsoft.SharePoint.PowerShell
    }

    $webapps = (Get-SPWebApplication | % {$_.url})
    $listTemplate = [Microsoft.SharePoint.SPListTemplateType]::DocumentLibrary
    foreach ($webapp in $webapps) {
      $appdetails = Get-SPWebapplication $webapp
      $appdetails.GrantAccessToprocessIdentity("$env:userdomain"+"\$env:username")
      $spWeb = Get-SPWeb -Identity $webapp
      $DocLibName = "MSOTest$($appdetails.displayname)".split(".")[0]
      $DocLibName += "_DocumentLibrary"
      try { 
        $library = $null
        $library = $spWeb.lists["$DocLibName"]
      }
      catch {out-null}
      if ($library) {
        #If document library does exist, delete it
        $spFolder = $spWeb.GetFolder("$DocLibName") 
        $spFolder.recylce() | out-null
      }