title: ios - Vertical position is ambiguous
body: <p>I've a regular table view and I'm putting a view above and below the cell currently in the middle. On some occasion, those "above" and "below" cells don't appear because <code>Vertical position is ambiguous</code>. I don't see the ambiguity. My views structure looks like</p>
  
  <p><a href="https://i.stack.imgur.com/tHNKh.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/tHNKh.png" alt="enter image description here"></a> ans here's a screenshot of the contraints on the above cell:</p>
  
  <p><a href="https://i.stack.imgur.com/Vk78u.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Vk78u.png" alt="enter image description here"></a></p>
  
  <p>As you can see, constraints related to vertical positioning are:</p>
  
  <ul>
  <li>bottom of the view</li>
  <li>height</li>
  </ul>
  
  <p>And I don't see how this leaves room for uncertainty regarding the positioning of this view.</p>