title: Unable to perform Graph user search using API Explorer
body: <p>I'm having an issue getting the graph search to work when I manually use the Graph API Explorer to generate an access token for myself against my application.</p>
  
  <p>I've created an application, set the sandboxed mode to 'off', and then manually granted my user account permissions to my application. To be safe, I included all the permissions available in the graph API explorer before generating the access token.</p>
  
  <p>When I click on my access token, I see that it is still valid, and has all the permissions listed, however, when I perform the following search:</p>
  
  <p><code>/search?q=myphonenumber&amp;type=user</code></p>
  
  <p>I get an error saying:</p>
  
  <pre><code>{
    "error": {
      "message": "(#200) Must have a valid access_token to access this endpoint", 
      "type": "OAuthException", 
      "code": 200
    }
  }
  </code></pre>
  
  <p>I know the above search code is valid because I was able to get it working a few days ago, I can't seem to figure out what has changed. Am I missing a permission somewhere that prevents me from using my access token to do an API search?</p>
  
  <p>UPDATE: I should also mention that normal <code>/me</code> queries work just fine, it seems to be only the search which is disallowed.</p>