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. Even if SharePoint tells you everything is OK, it might not be the case.