title: In xcode 6.1, interface builder deleting ui elements
body: <p>I have a view with some tableviews and some collection views and also some buttons and labels.</p>
  
  <p>I'm not sure if this is new with Xcode 6.1 because I have not worked on the ui aspect of this project for some time.  However, when I try to resize just about anything in the view, my tableviews and collection views, and possibly some other elements I am not noticing, get deleted.  Specifically, it seems their frame or rect propertied get deleted.</p>
  
  <p>To be clear, this only occurs when I attempt to resize the element by dragging the sides in interface builder.  If I resize them by changing the numbers directly either in the IB sidebar or in the xml, this does not happen.</p>
  
  <p>I'm wondering if this is a bug in Xcode or if I have done something to cause this behavior which I can change.</p>
  
  <p>Thanks!</p>