title: Why doesn't Proguard appear to obfuscate code?
body: <p>I'm using kotlin for Android, it works, and I upload the mapping.txt to Android Vitals, but the stack trace in Android Vitals is not correct at all. Does any one know why?</p>
  
  <p><a href="https://i.stack.imgur.com/OcPMj.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/OcPMj.png" alt="enter image description here"></a></p>