title: Range slider's touch (box) of video trimmer "off"
body: <p>I am using <a href="https://github.com/fulldecent/FDTake" rel="noreferrer">FDTake</a> (the pod wont be too important for this question but still) to select videos from Photos which works fine. However, I would also like to be able to edit videos and limit their length to about 12 seconds. To do so I looked at the code of the pod and changed <a href="https://github.com/fulldecent/FDTake/blob/05e1148d739e7d49c6d3dd162643ec7ec18be465/Source/FDTakeController.swift#L271" rel="noreferrer">line 271</a> to <code>self.imagePicker.allowsEditing = true</code> which already causes the problem I haven't been able to solve so far: The left slider's touch (box) is “off”. Since that's a rather vague description I uploaded a video and you can find it <a href="https://youtu.be/UEkVYO1j8eQ" rel="noreferrer">right here</a>. </p>
  
  <p>Unfortunately, I have absolutely no idea what engenders the problem and would really appreciate some help with this. I asked the creator of FDTake but apparently he thinks that Apple needs to fix this (as you'll be able to see in one of the latest closed issues). </p>
  
  <p>Can someone explain how I can fix this and what is causing it?</p>