Android app crashes on sign out

1. Press continue on sign in screen
2. Click the user menu
3. Press sign out and the app will crash after one second

Your app just crashed. See the error below.
java.lang.IllegalStateException: ScreenContentWrapper contains null child at index 2 when traversal in dispatchGetDisplayList, the view may have been removed.
  android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:4522)
  android.view.View.updateDisplayListIfDirty(View.java:23874)
  android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:4554)
  android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:4527)
  android.view.View.updateDisplayListIfDirty(View.java:23874)
  android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:4554)
  android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:4527)
  android.view.View.updateDisplayListIfDirty(View.java:23874)
  android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:4554)
  android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:4527)
  android.view.View.updateDisplayListIfDirty(View.java:23874)
  android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:4554)
  android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:4527)
  android.view.View.updateDisplayListIfDirty(View.java:23874)
  android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:4554)
  android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:4527)
  android.view.View.updateDisplayListIfDirty(View.java:23874)
  android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:4554)
  android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:4527)
  android.view.View.updateDisplayListIfDirty(View.java:23874)
  android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:4554)
  android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:4527)
  android.view.View.updateDisplayListIfDirty(View.java:23874)
  android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:4554)
  android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:4527)
  android.view.View.updateDisplayListIfDirty(View.java:23874)
  android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:4554)
  android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:4527)
  android.view.View.updateDisplayListIfDirty(View.java:23874)
  android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:4554)
  android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:4527)
  android.view.View.updateDisplayListIfDirty(View.java:23874)
  android.view.ViewGroup.recreateChildDisplayList(ViewGroup.java:4554)
  android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:4527)
  android.view.View.updateDisplayListIfDirty(View.java:23874)
  android.view.ThreadedRenderer.updateViewTreeDisplayList(ThreadedRenderer.java:694)
  android.view.ThreadedRenderer.updateRootDisplayList(ThreadedRenderer.java:700)
  android.view.ThreadedRenderer.draw(ThreadedRenderer.java:798)
  android.view.ViewRootImpl.draw(ViewRootImpl.java:5796)
  android.view.ViewRootImpl.performDraw(ViewRootImpl.java:5447)
  android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:4441)
  android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:3038)
  android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:10600)
  android.view.Choreographer$CallbackRecord.run(Choreographer.java:1568)
  android.view.Choreographer$CallbackRecord.run(Choreographer.java:1577)
  android.view.Choreographer.doCallbacks(Choreographer.java:1177)
  android.view.Choreographer.doFrame(Choreographer.java:1106)
  android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:1551)
  android.os.Handler.handleCallback(Handler.java:995)
  android.os.Handler.dispatchMessage(Handler.java:103)
  android.os.Looper.loopOnce(Looper.java:248)
  android.os.Looper.loop(Looper.java:338)
  android.app.ActivityThread.main(ActivityThread.java:8982)
  java.lang.reflect.Method.invoke(Native Method)
  com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:593)
  com.android.internal.os.ZygoteInit.main(ZygoteInit.java:932)