title: pyautogui.locateAllOnScreen can't locate the image
body: <p>I'm building a bot a to play the following game called Sushi Go Round. I was using function locateAllOnScreen to locate the orders.</p>
  <p>The code is like following:</p>
  <pre><code>import pyautogui
  
  onigiri = pyautogui.locateAllOnScreen('onigiri.png')
  
  print(onigiri)
  </code></pre>
  <p>The onigiri.png was cropped out from the third customer. <code>locateAllOnScreen</code> could only locate the third customer's order but not the forth customer's even though their images (orders) were exactly the same.</p>
  <ol>
  <li><p>Why didn't the function locate all images even though the images were the same?</p>
  </li>
  <li><p>Or were the images actually different?</p>
  </li>
  </ol>
  <p>I'm frustrated. Please help. Thank you very much!</p>
  <p>Sushi Go Round</p>
  <p><img src="https://i.stack.imgur.com/VtWiX.png" alt="Sushi Go Round" /></p>
  <p>onigiri.png</p>
  <p><img src="https://i.stack.imgur.com/umGTs.png" alt="onigiri.png" /></p>