Trying to un-hide content type using powershell

Question

I'm using this script below and am writing back the library name and if the content type is hidden after the update.
Everything points to being correct yet when I go back to the library settings the eDocument Link is still hidden. What am I missing?
add-pssnapin microsoft.sharepoint.powershell -ErrorAction SilentlyContinue
$script:WebApps = Get-SPWebApplication "http://xxxx"
$script:DocLibType = [Microsoft.SharePoint.SPBaseType]::DocumentLibrary
foreach ($WebApp in $WebApps)
foreach ($site in $WebApp.Sites)
if ($site.AllWebs.Count -gt 0)
foreach ($web in $site.AllWebs)
foreach ($list in $web.GetListsOfType($DocLibType))
foreach ($ct in $list.ContentTypes)
if ($ct.Name.Equals("eDocument Link"))
$ct.Hidden=$false;
$ct.Update();
$List.Update()
Write-host "$site:: $web:: $List updated"
Write-host $ct.Hidden
$web.Dispose()
$site.Dispose()
SPSite Url=http://xxxx/team/is:: xxxx:: Active updated
False
SPSite Url=http://xxxx/team/is:: xxxx:: Documents updated
False

Answer 1

that's what you already checked in your loop 
if ($ct.Name.Equals("Wibble"))
the updated is because you already added the new content type at the start of the new item menu so this will make sure that you will add it to the end and ignore the first entry as if you add list contains duplicate content type you will get exception at
the line 
$list.RootFolder.UniqueContentTypeOrder=$ct_list
Hope that helps|Amr Fouad|MCTS,MCPD sharePoint 2010