If you run into the problem that you can’t delete properties within the User Profile Service Application, an Exception like this will be shown: To resolve the problem, grant “Full Control” permissions to the administrative Applicationpools group (WSS_WPG). Now you should be able to delete properties again.
“Your search encountered an error. If the problem persists, contact the portal site administrator.” Great. That would be me 🙂 I wanted to manage some properties within the User Profile Service Application. But an error message kept me from doing so. A quick look for the running SharePoint services from the Central Administration looked ok. The UPS services is up and running. Then it hit me.