title: Windows Task Scheduler Misbehaving with Queue Instance
body: <p>I have created a task on Windows 7 (64 Bit) Task Scheduler with time-based launch of script to launch at 20th minute of every hour. 
  On the setting tab, have enabled "Queue a new instance" if the task is already running.</p>
  
  <p>With this options enable, I am seeing en errored start of two instances being triggered at the same time as given below. </p>
  
  <p>i.e There are no instances running actually and the previous instance ended long before the current trigger time.</p>
  
  <p>Does anyone else come across such situations or know whats causing this?</p>
  
  <p><img src="https://i.stack.imgur.com/PKI8K.png" alt="enter image description here"></p>