title: SSRS scheduled report running on a different schedule than was setup
body: <p>SQL Server 2008 (not R2).</p>
  
  <p>The report was setup on 5/8/2017 and scheduled to run every Monday every 4 weeks.  It ran again on 6/5/2017, which is correct.  It then ran again on 6/12/2017, which is only 1 week.  Then it ran again on 7/10/2017, which is 4 weeks.  Looking in the execution logs the username is sql.service and RequestType is Subscription for 6/5, 6/12 &amp; 7/10.  In the Report Manager it says the schedule started on 5/8.  I don't see anything that is indicating the schedule changed.</p>
  
  <p>Any ideas why the report would run again on 6/12 when it wasn't scheduled to run?  Thanks!</p>
  
  <p>Here's the schedule as it looks today.
  <a href="https://i.stack.imgur.com/XASQo.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/XASQo.png" alt="enter image description here"></a></p>