title: Sitecore Alias refuses to work
body: <p>I've inherited a Sitecore project and added a new alias to a set of existing aliases on an item within the content tree.</p>
  
  <p>However, although I can visit the older aliases any of my new aliases seem not to work and lead to a 404.</p>
  
  <p>I've tried publishing the content items and even System/Aliases however they still refuse to work.</p>
  
  <p>Am I missing something obvious?</p>