title: When are issue velocity alerts sent
body: <p>I have configured Fabric and Crashlytics in my application. I have added the call to test crashes:</p>
  
  <pre><code>    Crashlytics.sharedInstance().crash()
  </code></pre>
  
  <p>I am seeing those crashes reported in the Dashboard with the stack traces and everything.</p>
  
  <p>In the Settings menu under <em>Notifications</em>, I have all the alerts set to <strong>On</strong>, including <em>Issue Velocity Alert</em>. </p>
  
  <p>According to this <a href="https://stackoverflow.com/questions/44396175/email-alert-when-crashes-cross-a-particular-threshold/44413486#44413486">answer</a> the Issue Velocity Alert:</p>
  
  <blockquote>
    <p>If an issue is causing a crash in 1% of all user sessions within the past hour, you'll be notifiied. </p>
  </blockquote>
  
  <p>I have received a <em>New Fatal Issue Alert</em> for the calls to <code>crash()</code> which shows the I am receiving alerts correctly.</p>
  
  <p>But I haven't received any Issue Velocity Alert. Since 100% of my sessions have crashed to the same error, I should be receiving it right? The first crash happened 3 hours ago.</p>
  
  <p>Note that I have tested it with 1 user on 1 device.</p>
  
  <p>Why am I not receiving any alerts?</p>