title: EWS: Occurrence of a recurrence pattern is sometimes empty. Are there any alternatives?
body: <p>I'm fetching all the recurring meetings from Outlook with EWS.</p>
  
  <p>With the recurrence information I'm creating a string with the following format </p>
  
  <pre><code>(fromdatetime - todatetime ; fromdatetime - todatetime .... )
  </code></pre>
  
  <p>I need the "numberofoccurrences" to generate the list, but it's sometimes empty and I don't know why. </p>
  
  <p>I also checked it with EWS Editor:</p>
  
  <p><a href="https://i.stack.imgur.com/ciL1h.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ciL1h.png" alt="EWS Edtior"></a></p>
  
  <p>Do you know any other solution to find the <code>numberOfOccurrences</code>? </p>
  
  <p>Thanks in advance.</p>