In SharePoint 2010 I used
Set-SPCustomLayoutsPage -Identity AccessDenied (...) for adding my custom Access Denied page. When I do this in SharePoint 2013 it does not take effect. If I run Get-SPCustomLayoutsPage the field has been updated, but it still redirects to the standard 401 page.
Seems like others are experiencing the same. SharePoint 2013 custom pages
Has anyone been able to set custom pages?